Heard of Allulose? You should know the facts…

Honestly, who’s fooling who? Did you ever stop a minute and take a look at what the hell you are eating? Do you care? How many of you are reading labels and checking what the ingredients are derived from? Oh, so, a label says ‘maltodextrin’…what do you think? What is that? Just because you may have read it so many times doesn’t make it any safer. You ever wonder why degenerative diseases, obesity, and adrenal-thyroid-hormone imbalances are running rampant. What’s the common denominator? Possibly, our food or lack of nutrients in the food. Just because an ingredient is approved by the FDA or considered, GRAS, which stands for ‘generally recognized as safe,’ sure doesn’t make me feel warm and fuzzy inside!

So, let’s take a look at a relatively new sweetener named Allulose (AKA in science terminology, D-Psicose). It was brought to my attention when I learned some clients were eating bread made with this sweetener and supposedly feeling great that they could finally eat some ‘guilt-free.’ Being the food detective that I am and a natural researcher, I started investigating only to find non-cooperative product customer service, but the truth can’t be hidden for long. Let me empower you with the awareness of this sweetener.

Allulose is absorbed by the body but supposedly not metabolized by the body and has approximately 70% sweetness of sugar but 90% fewer calories. It can be found naturally in raisins, figs, and jackfruit, but this is not what the ingredient in the food products are deriving it from! Take a wild guess what this commercial scale of allulose is derived from? Drumroll, enzymatic conversion of corn. To boot, it states that the allulose syrup is from genetically modified (GMO) corn and therefore contains a very toxic chemical named glyphosate. 

If you want to gain awareness about glyphosate, then sign up for the free educational series at nancyguberti.com/gtest

Here’s some animal research on the sweetener: enlarged kidneys and liver when consuming normal amounts and some fatal reactions with unusually high amounts. For humans, it seems like GI distress, bloating, gas, and general discomfort with the sweet stuff! Do you really believe that something that goes through your system mostly unprocessed is not going to cause gastric distress? Since there are no long-term studies on the physiological effects in humans, the consumer is perhaps being used as a testing lab for this ‘GRAS’ ingredient. The prominent manufacturer is best known for Splenda, but now I see they are cranking out Stevia as well. Maybe there’s hope, time will tell.

You can find the ‘allulose’ ingredient in the following foods, so best to read your labels:

  • Carbonated and non-carbonated beverages
  • Rolls, cake, pie, pastries, biscuits, and frostings
  • Yogurt, both regular and frozen
  • Frozen dairy desserts, including regular ice cream, soft serve, sorbet
  • Salad dressings
  • Jams and jellies
  • Chewing gum
  • Hard and soft candies
  • Sweet sauces and syrups
  • Gelatins, puddings, and fillings
  • Fat-based cream used in modified fat/calorie cookies, cakes and pastries
  • Medical foods
  • Coffee mix

It’s in the following brands:

  • Beyond Cereal Protein Bars, by QuestNutrition
  • Bread Products, by Know Better Bread

It goes from bad to worse, the corn may have glyphosate in it, and it seems like the FDA does not have a mandate for food labeling for allulose regarding allergies. The FDA also decided to exclude allulose from the nutritional level concerning the total and added sugar declaration. 

There is no legal definition of the word ‘natural’ on food labels. Companies can say it’s natural because allulose exists as a molecule in wheat, corn, figs, raisins, BUT this is not what is in the products you are eating. You are consuming that genetically modified microbiome corn ingredient. Tate & Lyle manufacture allulose in Tennesee and sell it under the Dolcia Prima brand. Other companies selling allulose are Matsutani & Ingredon under the Astraea brand and Cj Cheiljedang & Anderson Global Group under the AllSweet brand.

What about the health ramifications and glucose intolerance mediated by changes in your gut flora? Another major reason to take quality probiotic supplementation daily.

Do me a favor, and let me know if you get severe GI issues eating it. I’d also like to know how much of it can you tolerant before you do get bloated and gassy. Sound like a fun challenge? I’d start a food journal and keep track if you lose or gain weight after consuming it long-term.

UPDATE! There is a woman-owned company named, Keto To Go (KETO-To-Go.com) that offers the  most decadent products using Monk Fruit instead of Corn! I tried their Organic, Gluten-Fee, Vegan products and they are amazing, nuritous and delicious. Check out the video here spotlighting their products. So happy to find a health-minded business owner interested in making her consumers healthy as well as happy. 

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Animal Research Sources:

1. The Study on Long-Term Toxicity of D-Psicose in Rats – Yagi, Matsuo – Journal of Clinical Biochemistry & Nutrition, Nov 2009

2. Effects of oral acute administration and subchronic feeding of several levels of D-psicose in rats, Matsuo et al., Journal of Nutritional Science and Vitaminology, 2002

Here’s the reason why companies are using Allulose. This article states that consumers have not thrown the red flags about allulose yet! https://www.foodnavigator-usa.com/Article/2019/05/13/Tate-Lyle-talks-allulose-The-first-two-things-consumers-look-for-on-the-Nutrition-Facts-panel-now-are-calories-and-sugar

Latest research indicating the GI issues from consuming allulose can be found here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6315886/

Gastrointestinal Tolerance of D-Allulose in Healthy and Young Adults. A Non-Randomized Controlled Trial Youngji Han,1,2 Bo Ra Choi,1,2 So Young Kim,1,2 Seong-Bo Kim,3 Yang Hee Kim,3 Eun-Young Kwon,1,2 and Myung-Sook Choi1,2,*

The results of the present study demonstrate that the GI response to D-allulose, in occasional or regular consumption in increasing doses, includes abdominal distention, abdominal pain, and diarrhea. Diarrhea was most common reason for subject withdrawal from the study. Tolerance to slowly-absorbed, bulking sweeteners is commonly evaluated through the participation of healthy volunteers who consume large or increasing amounts of the test substance by itself, diluted in water. However, individuals do not usually ingest a large load of such sugar-free products at one time, in a state of fasting; rather, they consume smaller amounts through the day, during or after meals, in the form of pastries or other confectionery items. In addition, individuals may consume slowly-absorbing bulk sweeteners occasionally or regularly.

It’s best to decide for yourself, and I thank everyone who has emailed me with their experience, including the good, the bad, and the ugly.
I love reporting the facts. I’m just an honest, concerned citizen empowering you to be your best health advocate.
Always look at who is funding the research and who is private labeling such products like allulose because they may be the ones that cannot handle the truth. The world would be a better place if we all were to do good and do no harm to others.


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Leave A Reply (74 comments So Far)

  1. Nymbus
    6 years ago

    Omg my sister made some food with this in it and I had an immediate reaction. Within an hour I had explosive diarrhea and very painful stomach cramps. I was sick for a week. She said she used a tiny amount and that she eats it all the time with no symptoms. Bleh.

  2. Liza M. Shaw
    6 years ago

    I ate a cookie made with it tonight and about twenty minutes later my entire upper body felt like it was on fire! And my face and torso lit up, bright red, as though I’d had a second degree sunburn! I didn’t have any GI distress, but I am obviously allergic to it, or something else in the cookies. The redness died back after I took two benedryl. Oh well… I was hoping these would be the rare treat I could eat while maintaining a ketogenic diet.

  3. Tammy Arnzen
    6 years ago

    I have been buying the quest bars and using the quest protein shakes, and noticed within a few minutes after consuming them, I’ve had stomach aches, and bloating. I have since stopped using them, and I have no abnormal issues.

  4. Kay
    6 years ago

    I ate some in homemade ice cream last night for the first time. I didn’t have any digestive problems but my throat had symptoms and it became more difficult to swallow. I woke up with swollen eyes and thick mucous in my throat. I’m obviously allergic to it. Its supposed to be good for sugar free ice cream and keeps it scoopable and soft. I won’t be using it again.

  5. Monique
    6 years ago

    I started the Keto way on July 1st and have been searching for snacks and foods that are keto friendly. I am slowly getting used things on this lifestyle change and was excited at the idea of a BIG cookie from KNOW that claimed a 4g net carb and high fat. They taste great! However I am now realizing the correlation to the cookie and feel ill and bloated almost immediately after eating it. Started looking into this further and now believe the Allulose is to blame. So disappointing but well noted to avoid these cookies and the ingredient going forward.

    • Nancy Guberti
      6 years ago

      Congrats to starting Keto and that you were able to see the pattern to the bloating and the cookie. This is why I recommend keeping a food journal so you can become your best health advocate and understand your biomedical functioning correlation to foods. Keep up the great work committing to your optimal health.

  6. Kathy
    6 years ago

    First time user, never again. I made some keto cookies with Allulose and 2 hours later I feel very nauseous & bloated, like there’s a rock in my stomach. It feels as if I ate poison.

  7. Maha Aldoori
    6 years ago

    Trying to find more research on Allulose and landed here. I bought some to try out today in scones and jam. The taste was fine and no digestive issues. My son ate both and had no problems at all. However, I feel like it might have spiked my insulin because I’m so sleepy this afternoon, and I had a good night’s sleep and coffee at lunch, and I used to feel this way before going Keto/lchf. I also feel like it’s given me a headache without the pain and a bit of brain fog, if that makes sense. I was hoping this sweetener would be good to have an occasional dessert, but it really feels like I ate regular sugar. I also ate it after fasting for 25 hours, so I don’t know if that would alter how I feel. I wouldn’t think so. I might try one more time, or I just might stick to fruit for occasional treats.

  8. Tina Sachau
    6 years ago

    I ate a salted caramel Quest Hero bar at about 3:30 pm yesterday. I started getting gas before bed. I couldn’t sleep because the gas was uncomfortable. I had weird and extremely busy thoughts that buzzed through my brain at high speeds. I kept flatulating horrible smelling gas all through the night. Won’t eat it again.

  9. Terri Hampton
    6 years ago

    You are the only one reporting gastrointestinal issues with allulose that I can find. I started eating cookies from the KNOW brand, which are sweetened with allulose. SEVERE diarrhea. If I only eat a half cookie, it’s tolerable. More people need to know this.

  10. dee
    5 years ago

    I have been looking for alternative sweeteners for my diabetic customers and came across Allulose. There isn’t a lot of research available so I thought I’d get samples and give it a try. A little excited until I made a batch of cookies- I always use “lab bunnies’ before putting items on my menu. NOPE won’t be using allulose !!! The brand states non gmo which is good, but oh NO! Tummy troubles immediately with 1 1 1/2 ‘ cookie…There is definitely an issue with this for me and a few of my lab bunnies.

  11. Tracie Vasseur
    5 years ago

    I’ve been eating the hero quest bars in half instead of the whole bar.. still gastrointestinal issues and I did not know what it was coming from until finding this article . Thank you all…

  12. Kelly
    5 years ago

    We have been following Keto for a while, using Erithrytol as a sugar substitute. My husband doesn’t like the cooling effect of Erithrytol so our desserts were switched to use Allulose last week. The diarrhea was the first symptom, then just weird stomach pains, now I’m having a lot of bloat, which I didn’t have before. It’s the only thing I have changed. I noticed the effects rather quickly as well. I don’t think he can tolerate either one as he has been having severe gastric issues. I don’t seem to have any issues with Erithrytol though. No more Allulose for me….

  13. Colette
    5 years ago

    I ate one cookie with allulose in it and had minor stomach issues. The next day I tried another one (just to be sure If it was the allulose or not) and got so sick I couldn’t stop throwing up and had diarrhea for hours. I threw the rest of the cookies away. It honestly felt like I poisoned myself. Uggg… never again!

  14. Amir
    5 years ago

    I was using erythritol a while back and didn’t quite like the aftertaste (though definately not bad). Started using allulose for about 2 weeks now (ice cream, cookies, lemon vars). I love it! it’s not as sweet as sugar, but it tastes practically the same (to me, at least). No one in my family has experienced any GI or other issues. We definately need some blind studies vs sugar and other sweeteners. Anecdotal examples isn’t enough to support (or not) a product.

  15. M Roane
    4 years ago

    I tried allulose in lemonade a few years ago and had horrible gastric discomfort. Unfortunate because it really tasted like sugar.

  16. shelly sparks
    4 years ago

    I’ve recently been eating snacks with allulose, stevia, and erythritol, which are new for me. I’ve developed per-oral dermatitis and I’m wondering if there is a connection. Anyone else with a skin condition? I’m also very allergic to ragweed, which correlates with the stevia.

  17. dgillam
    4 years ago

    I started low carb dieting a few weeks ago. I wasn’t losing weight like I have in the past so I started looking at my sweeteners. This time I had been using Splenda in my morning coffee, and in researching I read that it can have higher carb fillers, so based on some online reviews I ordered Allulose. This morning I put two spoonfuls of Allulose in my coffee. I didn’t have any pain or cramps at all, but upon waiting for my usual post coffee trip to the bathroom I suddenly felt a definite urgency. I made it to the restroom in time as I was at home, but if I had been out and about this could have easily been a full “blown” emergency. Had to go a few more times before I felt I could leave the house safely. I will not be using this again and I now have almost an entire 32 oz bag I can hopefully give to a low-carb friend who already knows its okay for them, because it’s definitely not okay for me.

  18. Cady
    4 years ago

    In so much pain right now… made homemade apple sauce, skin on, so lots of fiber already. Then added allulose for sweetness…. never again. Seering stomach pain. Limited sites are mentioning this and it makes me think the marketing campaign by manufactures of this product is behind the endless articles in women’s magazines etc on the topic.

  19. Erin
    4 years ago

    I used allulose last night as a substitute for simple syrup in a margarita. Within an hour I felt nauseous and bloated and generally awful. Spent half the night on the toilet and it’s been over 12 hours, still feeling off and having some issues with bloating and diarrhea. Never using that stuff again, just mad I spent $7 on it.

  20. Lauren
    4 years ago

    Hi I just found your blog and wanted to respond as I am someone who has severe constipation and bloating occasionally. I tried a product with this as one of the main ingredients, I was sick all night with terrible gas and diarrhea. I thought maybe it was a fluke so I waited a few days tried it again , same thing happened. This sweetener is too good to be true. Maybe some people will not have any effects but I am a picky eater who eats very healthy and this did not sit right with me and got me so sick. I will never eat anything with this again I just wanted to let other people know what happened to me unfortunately.

    • Nancy Guberti
      4 years ago

      Thank you Lauren for sharing your experience and glad you discovered it was the allulose. Be safe and healthy.

  21. Asia
    4 years ago

    I had allulose for the first time today. I had several keto cookies made with it. Took a few hours but now I’ve got serious gurgling gut and diarrhea. Apparently this is not the sweetener for me! Bummer because it did taste really great.

    • Nancy Guberti
      4 years ago

      Thanks for sharing your experience. It’s horrible that so many are experiencing these side effects. Here’s a YouTube video about allulose: https://youtu.be/3PvP4qT3WrU

  22. Craig
    4 years ago

    Well, I’m glad it’s not Covid, but-
    Found your blog after questioning what caused my sudden and repetitive bouts with explosive diarrhea, and lo and behold, looks like it was the Wholesome Allulose I bought a month ago at Costco.
    I had a couple pumps in a big glass of iced coffee for the first time today, and I didn’t last long after the drink was consumed.
    I will be returning the other container, and writing the Wholesome folks that Allulose is anything but Wholesome.
    Thank you for the concise information.

  23. Brianna
    4 years ago

    A new Brand id ice cream is producing “ZoCal” and it comes in pints (uses Allulose). I really wished I had researched before consuming that pint feeling guilt free. I immediately had SEVERE diarrhea and it lasted all night long. Never again!!

  24. Kay
    4 years ago

    It lowers my bg seems by improving my insulin resistance. Like instantly
    BUT after using it a few times, i get nausea and diarrhea.

  25. Suse
    4 years ago

    I’m an obese 71-year old and on low-carb. My glucose readings stay between 90-120, mostly around 100. Too many carbs and glucose can go to 135 after fasting! So, pre-diabetic (last A1C was 5.5). An online LC discussion claimed Allulose worked well in LC ice cream recipes. So, I bought it. Haven’t tried it in ice cream recipes yet. However, more than a tablespoon of this per day resulted in gastric distress and diarrhea, even after a week of gradually letting my body get use to it in small amounts. I returned to 1-2 Splenda packets to sweeten my LC morning hot chocolate and 1 packet Splenda in my microwave 1-minute flax muffin. The Allulose gave the flatbread a better texture, though. Needed too much (apparently) when using Allulose to sweeten tea or hot chocolate (made with LC milk) – 2 tablespoons are enough to cause major issues.

  26. Amelia
    4 years ago

    I ate some allulose yesterday evening and I got extremely bloated and felt dizzy. I will never eat it again. The allulose was in a brand of gummy bears called Smart Sweets. They used to use to sweeten with stevia but now they’ve changed to allulose and monk fruit extract. It’s very disappointing.

    • Nancy Guberti
      4 years ago

      So sorry to hear that you got sick from the allulose.
      Thank you for letting us all know that Smart Sweets unfortunately switched from stevia to allulose.
      It’s amazing how the doctors, practitioners and companies selling allulose refuse to believe or truly comprehend that people can get really bad GI issues from it.
      Thank you again for informing us about your experience. Renewed health to you.

  27. R
    4 years ago

    The GI issues don’t happen to everyone and there are non GMO sources of allulose. I had GI issues with large quantities of allulose, which is to be expected, because it’s a prebiotic and doesn’t get digested completely. However, I only had GI issues the first day, after that, nothing. You apparently get used to it. I really love allulose for some things, like lemonade and other drinks, ice cream, etc.. It’s hard to bake with because of the increased Maillard browning and absorbing water. So you can’t make anything crispy with it. I was able to buy some non-GMO syrup from the lone US manufacturer and it is the bomb. The enzyme used to convert fructose to allulose is one that is found in nature. Preliminary research on allulose has found some surprising benefits, like it lowers blood sugar, and has prebiotic effects.

    • Nancy Guberti
      4 years ago

      Thank you for sharing Rita.

  28. Amber
    4 years ago

    I’ve used it before and I didn’t really have any issues. I tried this candy alternative called Smart Sweets. ( after I had already had a protein bar with allulose in it.) I was excited because it doesn’t have very much sugar. But it made my stomach really upset, almost immediately. Just had painful bouts of diarrhea.

    • Nancy Guberti
      4 years ago

      Hi Amber,
      Thank you for letting us know. That’s interesting as we have heard from several people who have had really bad reactions to the Smart Sweets.

  29. Melissa
    4 years ago

    Yes it can cause a “clean out” Oh vey

  30. LoiraSafada
    4 years ago

    I have zero food allergies or sensitivities, and the allulose in the new (terrible) Smart Sweets recipes gave me the worst abdominal pain I’ve ever had in my life. Nothing else – just hours of horrible, horrible cramps/pain from eating maybe half a bag.

  31. Linda
    4 years ago

    I ate two Munk Keto Granola bars with allulose in it. I have grain allergies. They said grain free. Well my body says otherwise. I felt like I got hit by a mac truck, like a hangover feeling. I had brain fog and shoulder pain which comes on when I eat something I’m alleric to. I reached out to Munk and they say while allulose is “derived” from corn it doesn’t have corn in it. I beg to differ. So not worth the pain afterwards!

    • Nancy Guberti
      4 years ago

      You are correct Linda, I would totally agree with you on the beg to differ about the corn. I am sorry you felt ill and hope you are feeling much better now.

  32. Danielle
    4 years ago

    My hubby accidentally used the sugar free Ray’s barbecue sauce for some pulled steak he made. I have an odd stomach so I thought my sickness was due to it. I was nauseous, sweaty, diarrhea and headache that felt like flu. Then my hubby said his stomach hurt and he has had extreme diarrhea. My son had diarrhea as well. This is 24 hours later and our stomachs are still gurgling and I still feel really sick.

  33. Zara nouvelle
    4 years ago

    I’ve been baking/ cooking with this product for around 6 months now and just wanted to contribute my own anecdotal findings. When I consume allulose in food (baked goods/ ice cream) it usually does not cause me any stomach discomfort, even when I eat it in large quantities. However, whenever I drink it as a sweetener (coffee, tea, lemonade) I experience pretty severe gastrointestinal symptoms (bloating, has, diarrhea). I’m not sure why that is, maybe cooking it makes it milder somehow or the solid ingredients create more of a buffer? Either way I have noted a definite pattern. As for it’s effect on weight loss, I found that I lost the same amount of weight while consuming products containing allulose as I did when I was eating products containing erithrytol. I can roughly double the amount of weight I lose in a month by cutting out both of them. I feel that this is just due to the fact that usually the foods that contain these sweeteners are “treat” foods and even when they are free from sugar/carbs they still tend to be caloricaly dense and easy to over consume.

  34. Judith A Ghander
    3 years ago

    I used cellulose in a keto peanut brittle recipe. I had read several reviews on it before I bought it. They all stressed its benefits and implied that to date, although human studies were limited at this time, that there were no reported adverse effects. After having several pieces of this brittle tonight, I have experienced severe abdominal pain, flatulence, nausea and diarrhea. It has lasted several hours. Never again!

  35. Lisa
    3 years ago

    I recently had some keto cake from a local bakery and I had the strangest cramps from my legs uterus abdomen and even upper body. I have tried most sweeteners but never experienced anything like this. I did have gastric bypass in 2006 and the reaction reminded me of “dumping syndrome”. There is something wrong with this sweetener and I pray that the masses know before it is too late and gets into everything

  36. Tal
    3 years ago

    I drink Soylent and the latest version of their product uses Allulose as a sweetener.
    I can no longer use their product.

    I am a gluten sensitive individual (non-celiac). After drinking this I had the same reaction as I do when I consume gluten – headache, joint-swelling, gastric distress and debilitating brain fog.

    My personal guess is that I may never have been sensitive to gluten at all and it’s really the small amounts of allulose naturally present in wheat that I am sensitive to – as the other naturally occuring items listed such as raisins, figs & caramel also give me a minor reaction.

  37. Lizzy
    3 years ago

    I’m so glad I found this blog. I just switched to keto in the last few weeks and bought two products from Amazon, both of which contain allulose. Prior to that, I had never heard of the sweetener. They both arrived on the same day, and I happily tried them — only to develop a terrible headache that lasted for a day or two. I didn’t touch them again until today; only had a little bit of one and developed stomach cramps and bloating. FYI — The products are Highkey Breakfast Biscuits (banana bread flavor) and IQ Bar keto protein bars. Thanks to everyone for sharing this vital info!

  38. Karen
    3 years ago

    Very glad to find this blog post. I’ve been eating low carb since October 2020 and haven’t noticed any coincidences with what I’m eating that has caused gastro issues…until now. For the last month I’ve had diarrhea on and have been trying to figure out what it was. For awhile I was afraid to eat, not sure of what was causing it. I thought it could have been vitamins or supplements, or a flu bug, or an infection/parasite (maybe from salad, etc.) I think I have finally narrowed down the culprit. A few months ago I found some low carb breads at the grocery store and I love them! (Aunt Millie’s Carb Smart breads.) The hub has some gluten issues and tried to tell me he thinks it makes him sick. I poo-poo’d (pun intended) that idea and kept buying it. Well I hadn’t had it in several days and went and made 3 pieces of french toast last night for dinner. My stomach had been fine that day, but just before bedtime it started back up. And this morning it was explosively awful again. I think I’m coming to the conclusion that it IS the bread. I looked up the ingredients (there aren’t a whole ton) and the one that stuck out as a potential cause is the Allulose. I’m guessing that’s what is doing this to me. Going to have to check out other brands, and keep an eye out for this sweetener in other low carb products I buy. Thing is, I don’t think it ALWAYS causes issues, which is really odd. It’s kinda like playing gastrointestinal Russian roulette, though. Need to take into consideration what my plans are hours or a day later…do I want to risk it? I’m glad to see I’m not the only one who has experienced this, and this post, and all of the comments, are enough to get me to the conclusion I’m gonna have to walk away, teary-eyed, from this bread…..(and next ingredient list to check is the Birch Benders Keto waffles….those cause some major gas and bloating after I eat them and I’m now wondering what sweetener is in it…nope, just looked, no Allulose, so there’s something else in those to investigate!)

    • Nancy Guberti
      3 years ago

      Hi Karen,
      Thank you for the comment. For the waffles, it could be the cassava starch or the husk powder. Make sure to drink lots of water with them if you try them again and take a digestive enzyme and probiotic.

  39. Mary
    3 years ago

    Wow. I’m wondering if this is what has caused me upset off and on. About a month ago I was having stomach issues. I rarely have issues. I have bought a lot of this sweetener thinking it was superior to erythritol. The brand I have is called Wholesome. It lists the ingredients as only allulose. Doesn’t say the source but does mention in description that it’s naturally found in figs, raisins, and kiwi. Interesting. I almost hope this is the culprit because I couldn’t pinpoint why I was having issues off and on for a week. I stopped eating a lot of extra stuff and sweets may have been on that list lol. But today I got into my freezer and found a Keto Texas Sheet Cake I made with all allulose in the cake and frosting. And now my stomach is upset and (TMI) the worst smelling gas and diarrhea. Embarrassing to mention 😬 but I’m highly suspicious of this now. I’ve got 4 bags of it still. Was thrilled to find it. Back to Lakanto for me and see what happens. Also, back when I first had problems, I had a couple nights of the worst heart burn in my life and I don’t get heartburn. Thanks for this article.

  40. Mary
    3 years ago

    I also would like to add to my previous comment… when I first started using Allulose, it didn’t seem to bother me and I thought I found something perfect. It was just after using it for 4-5 mos that it has affected me causing major gastric upset. Could it have built up or something?? I went to my Naturopath Dr about it because I thought surely I had a stomach bug. She put me on celery juice, saccharomyces, activated charcoal and Gluta DGL IGG. I felt better but I had stopped ingesting allulose during this time and was only eating chicken meals, eggs and some veggies, not really any sweets because I was sorta nauseous and wasn’t sure what was causing it. So now I’m pretty sure it was allulose after eating that cake I had frozen that was made with it and bam… here we go again!!

  41. Anna
    3 years ago

    I wish I had bothered to research this sweetener when I saw it for the first time in the grocery store tonight. I’m now on the toilet at 2am after using it to sweeten some black tea😩

  42. Debora
    3 years ago

    Being so hot and summer I started making my gallon sun tea. Not wanting to use sugar anymore I bought and tried Allulose. For one gallon of tea I would use 3/4 cup granulated sugar, so instead I used 1 cup and a scant 1/4 cup of Allulose. Tea tasted amazing.
    I filled a 20 oz cup with block ice cubes and poured the tea in. Drank it over an hour. About an hour later I filled the same cup with ice again and tea again and sipped it over the evening, was about 9:30pm. At 10pm my intestines were so noisy and rumbling with gas and I knew impending diarrhea was coming. Which did happen, and after two episodes of that I had bouts of extreme gas all night. I also could not fall asleep, which is not something I have trouble with. No headache though.

    I was so disappointed that this is from GMO corn! Glyphosate is NOT something I want inside my body.
    I would have never bought it knowing. Industry farmers and the corn lobbyists.
    They need to be more transparent with labeling. I’m going back to monk fruit as my sweetener of choice. Thank you for your enlightening article.

  43. Ula
    3 years ago

    OMG.. this is gross, but literally liquid, is coming out the other end! It could not be more watery! I’m running out of underwear… Halp! Jokes aside, I’ve never had gastro issues like this, and my boyfriend who has a stomach of steel was left KO’d for the afternoon.

  44. Betty
    3 years ago

    Thank you for posting this information. After consuming one of Chobani’s Zero Sugar yogurts (contains allulose), I feel dizzy and nauseous—like I’ve been poisoned. I follow a few YouTube channels that have been touting allulose as a healthy sweetener and such claims could not be more fallacious. This is not real food! I will be throwing away the rest of the allulose-laden yogurts I purchased.

  45. Nick
    3 years ago

    I have used allulose in my coffee every morning for a while now. I found reactions are dependent of multiple factors. It seems to boil down to what other things I am putting in my stomach and how much allulose I am using. I found one study that had one allulose user with gastric issues out of all of the test subjects. I found the same applies to myself. I have a limit that varies dependent on what else I am eating and how much I am eating. Studies have shown increased fat oxidation and I have lost weight using this stuff. I think the initial period of diarrhea and bloating is because of the body adjusting and bad food additives being purged. I believe the health benefits are worth finding what works for you when applying allulose to daily nutrition.

  46. Fox
    3 years ago

    Okay, the reason I found this blog is because I searched for “allulose cramps”. And the reason I searched for “allulose cramps” is because I just spent three hours on the damn toilet. It was quite unpleasant that my legs went numb from the knees down after the first half hour, but more important was the abdominal pain. How bad was it? Well, imagine the pain you would suffer if you were kicked in the stomach by Jackie Chan… WHILE you were having an appendicitis attack… WHILE you were trying to pass a kidney stone… WHILE you were in labor. And all I did was innocently try to turn a pitcher of unsweetened tea into a pitcher of sweet tea, using some liquid allulose. I probably shouldn’t mention the name of the company that produces it because I don’t have 100% scientific proof that it caused my reaction, so I will simply say that my experience was decidedly UNWHOLESOME.

    And yeah, if there’s any class action lawsuit that pops up over this stuff, definitely add me to the list of victims.

  47. Deianara Walker
    3 years ago

    Hello, first off I would like to say that this was the most informative arrivals I read about this. I typically read and go in but I felt like I would share my experience with you. I am a sugar addict. I love chocolate but I decided I needed a change and start taking better care of myself. I had decided I would try the Duncen Hines Keto friendly walnut brownie mix. Didn’t look at ingredients all I seen was 5 net carbs, 0 sugar, and 10g protein. Every time I eat one of these I have severe bloating, gas, and other issues. Well I looked and this package has 33g of carbs! They subtracted the 6g of fiber& 22g of allulose making it 5G net carbs on the box. I did a deeper dive into allulose and found your article. I really believe that’s what is causing my issues. Today I am completely miserable!!! I am hungry but can not eat due to the discomfort. So I hope this was able to help in some way maybe inform more people about this sugar. Feel free to email me back anytime

  48. Diana
    3 years ago

    My husband and I have been on and off keto for a while. I had not found a sweeter that worked for him until allulose. They all have an aftertaste and he would still crave sugar, hence we would fall off. I found Splenda allulose and we love it! I use it in coffee and fat bombs and generally anywhere sweetener is called for. We have had no issues and absolutely no cravings for sugary food. We are 4 weeks in and both down almost 20 pounds. I started with 60 pounds to lose and he started with over 100. We are excited to be in this journey to be healthier and more active for our grandchildren

  49. Hannah
    3 years ago

    Never again. I thought I was in keto heaven when I finally found a zero sugar maple syrup that actually tasted like real syrup. It was the Simple Truth allulose syrup from Kroger, and I bought two bottles because after the first little taste I knew I was going to want more. Little did I know that if you have more than a tiny taste, you will be running to the bathroom time and again until it’s out of your system. I have to throw both bottles out now 😒

  50. Karla
    3 years ago

    I gave it another shot to allulose tonight. It was used in a pineaple juice. Never again. I think after 2 minutes I was in stomach pain and I feel bloated. I did’t use a large amount of it. My husband and I drank the same juice. He is fine with no symptoms. But I am not fine. My stomach hurts so bad.

  51. KathG
    3 years ago

    I drank two glasses of lemonade I made with half allulose and half sugar and have been in the bathroom all afternoon. That was the only out of the ordinary food I ate. I found your post by googling “does allulose cause diarrhea?” And I guess I have my answer!!

  52. Victoria Olson
    2 years ago

    Just chiming in that allulose makes me nauseous and gives me severe gas and diarrhea. I’ve tried a couple different brands, but still get that reaction. Even the thought of it makes me ill now. I use Lankato’s Monk fruit erythritol blend, but prefer Bocha Sweet when I can get it.

  53. Jorna
    2 years ago

    If you want to know your what your reaction to allulose is, eat some on its own without all the other stuff that’s in the foods people are listing. Please make sure you’re getting allulose that isn’t doctored with erythritol or some other sugar alcohol! I’ve accidentally purchased some cheaper allulose before noticing on the label that they add xylitol or erythritol, which completely defeats the entire purpose of allulose. These sugar alcohols are notorious for causing GI issues, and I count myself among people who have pretty strong reaction to erythritol (cramping, bloating). I tried some pure allulose by itself and didn’t have any reaction at all, so give it a shot!

    I hear all of you with reactions, and I’m sure a fair number of people don’t tolerate allulose well. Just want to encourage you to try it on its own before coming to a conclusion.

  54. Holly
    2 years ago

    I am just thankful to have come across this blog. Everything I can find on allulose only has wonderful positive reports and reviews but i am certain now that is is what has effected me so greatly. I believe my insides are all messed up. I actually made a doctors appointment for the first time in about 10 years to try and get to the bottom of what’s going on and I kept having suspicions that the sweetener in the brownie mix that I made for Valentine’s Day is the reason and they were so good and my husband and I are keto that I’ve made again since that day. It did not bother me maybe the first 3 days but now I just ate a brownie and immediately (like within 20 minutes) had extremely bad side effects. I kept seeing all natural, health benefits, etc. I will not be eating anything containing allulose again. I don’t care how good it supposed to be for me, it’s not worth the pain and misery.

  55. Sheila
    2 years ago

    I am very intolerant of Allulose. I was happy to read your article. Lots of articles I read say it’s safe and doesn’t cause side effects unless you eat a lot of it. I knew I was intolerant of Allulose after buying a sugar substitute with it as the main ingredient and used it in my coffee. I was in the bathroom most of that evening. I ended up throwing the whole bag away. I recently bought some Keto ice cream bars and didn’t read the entire ingredient list. I saw erythritol, (which I have no problem with) and put them in the basket. I had one bar last night and this morning was in the bathroom again with the same digestive pains and diarrhea. I immediately went to the freezer and checked the ingredients and sure enough it was there! It was near the bottom of the ingredient list. Beware of this product everyone! And thank you for investigating this!

  56. Kathi
    2 years ago

    Could not figure out why I had diarrhea until I saw your article. Made from corn that is GMO!! I will go back to monk fruit!

  57. Jerry
    2 years ago

    I just made a coolaid with allulose. 8 ounces as a substitute for 8 oz sugar. I drank about 1/2. Big mistake. First it wasent very sweet. I had to add a squirt of monk fruit sweetner. However now i can not leave the toilet a few hours later. Very bad gi upset. Total waterworks down there if ya get my drift. Pooping is like pouring out a bucket. I found your article trying to see if the allulose was the problem. I beleve it is. I used the fit lane brand allulose from amazon. Never again.

  58. Holly
    2 years ago

    So, for me allulose is the best tasting sweetener on the market. I have GI issues regularly so didn’t think too much of about that. BUT, I do have an allergy to mango skin (touching my lips). It is a slow allergy taking a few days to happen. First tingling sore swollen sensitive lips that continued to swell and peel. I took a week off, tried it again (trying to isolate the allergen) and was convinced i was wrong, but three days later lips (and inner mouth) swollen sore and raw. I have not found anything about this, just keep seeing that it is rare to be allergic to this. (I also get a sore throat from erythritol),
    Just hoping this might help someone..

  59. Chrystal
    2 years ago

    I have been using Allulose for the last 3 weeks and stopped, it was causing me a diabetic type inflammation, colon permeability and robbing me of my energy. This stuff is no good, I have returned to Manuka honey and Birch tree Xylitol instead that has protected my gums and teeth from decay for years with no gut issues or diabetic reactions at all at 58.

  60. Chrystal Lagos
    2 years ago

    I just had a thought, you might not be able to digest it but does the bad bacteria enjoy it?

  61. Chrystal
    2 years ago

    Wait, I just realised what my problem was, the Allulose has caused a ‘die off’ reaction.

  62. kenneth seely
    2 years ago

    I added allulose to my diet a few months ago, starting in small amounts and eventually up to a regular use level, which currently is about 25 – 30 grams daily. Lately have noticed stomach and GI discomfort. I am very interested in what you’ve said here, in this article. Now I can’t wait to stop using allulose and check the response! Thank you. It is quite difficult to find good information about allulose.

  63. Donalie Sawtelle
    2 years ago

    I tried allulose and it made me very sick. I had this clammy sweating and felt hungover for 3 days. All sugar alcohols do this to me. Also it is made from corn not all the fruits they put in the descriptions. It is banned in Europe. That should tell us something. Great article. Small amounts of normal foods are better.

  64. Donalie Sawtelle
    2 years ago

    BTW anyone that thinks the FDA gives one hoot about us is very delusional.

  65. Joe RN BSN MSN
    1 year ago

    I recently did a sabbatical deep-dive refresher of current research regarding anti-cancer, anti-aging, anti-diabetes, anti-heart disease. Dr. Robert Lustig has some UTube vids on the issues which are QUITE eye opening.

    I have realized that, IMHO, much of what I/we were taught in medical training regarding the causes of these diseases was false. I feel guilty for patients regarding their knowledge, and frankly, our own.

    Thus, I have gone keto with intermittent fasting. I no longer have food cravings, am not hungry until about 3-4 in the afternoon, dropped 12 lbs in 2 weeks with no change in exercise habits, I feel great, full of energy, and sleep well.

    I bought some Allulose, sweetened my green tea with it this morning, and in about an hour had to run to the bathroom and I think I lost 200 lbs in 1 minute.. lol.

    Yep, if it is doing that, for myself, I’m returning the product. Your mileage may vary. Best wishes to all.

  66. Linda Wright
    4 months ago

    It’s also in Magic Spoon “grain free” cereal. I bought one box because it said gluten free, grain free but then found allulose (new to me) in the ingredients. I am now doubtful that it is truly grain free.

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