I love it really work.
Your metabolism was not.
designed for speed and convenience. Your
metabolism was not.
Today's foods are absorbed extremely quickly. For many people this leads to: Energy crashes after meals, constant hunger and cravings, afternoon fatigue, and difficulty managing weight.
It is not a lack of discipline. It is how modern food interacts with our biology.
Reduce the impact of modern meals.
SIGRID Glucose Stabilizer was developed to help smooth the body's response to modern food. With our patented SiPore® technology it works locally in the gut to gently moderate how quickly carbohydrates and fats are broken down.
Benefits reported by users:
Fewer cravings
Reduced snacking
Longer satiety
More stable energy
‘I used to crash every afternoon around 3pm. That’s mostly gone now.’ — Michelle, 36, New York
Fewer cravings
Reduced snacking
Longer satiety
More stable energy
Now available in the U.S.
CarbFence™
A medical food designed to support appetite control, reduce cravings, and promote healthy weight loss.Carb Fence™ works locally in the gut to gently slow the breakdown of carbohydrates and fats during digestion. The result is a steadier release of energy after meals, reduced snacking and cravings, and support for sustainable weight management over time.
Proven efficacy over and over again
91% of subjects in reported more stable blood sugar, and 93% said they felt fuller for longer
In collaboration with leading scientists and global research partners
In collaboration with leading scientists and global research partners
Our SiPore® technology is protected by multiple patents worldwide, reflecting over 15 years of innovation in and metabolic health.
Latest news
Published in The LANCET journal eClinicalMedicine
SiPore® significantly reduced long-term blood sugar (HbA1c) from baseline. It also improved body weight, fat mass, and blood lipids (LDL and total cholesterol), with reduced progression to diabetes and increased reversion to earlier glycaemic states. It was safe and well tolerated.
If you are experiencing any of these symptoms, irregular blood sugar might be what's causing it:
When our glucose levels spike after a meal and then crash shortly after, that activates the hunger craving center in our brain. We feel an irresistible urge to eat sugar. Trying to resist won’t work! The solution is to solve the root cause: glucose spikes.
An unstable glucose response can contribute to gut inflammation, disrupting the microbiome and weakening the gut lining. This can lead to bloating, discomfort, and digestive issues. Glucose stabilizers works as digestive health supplements. Balanced blood sugar supports gut health by reducing unnecessary stress on digestion and promoting a healthier microbiome.
Blood sugar fluctuations can disrupt hormone regulation, impacting everything from stress and energy levels to menstrual cycles and menopause symptoms. Studies show that stabilizing blood sugar can help support a more balanced hormonal system, reducing common symptoms like mood swings and irregular cycles. Glucose stabilizers can also work asPCOS supplements!
When we eat a meal that gives us a glucose spike, our glucose levels crash soon after. This makes us feel tired. If we want steady energy, it’s important to keep our glucose levels steady: avoiding glucose spikes is key.
When blood sugar levels spike, insulin rises—and when insulin is high, the body is less efficient at burning fat for fuel. Keeping blood sugar stable helps optimize metabolism, allowing your body to tap into fat stores more effectively.
Blood sugar instability can disrupt sleep by causing nighttime awakenings, heart palpitations, and difficulty falling back asleep. Elevated glucose levels before bed can also contribute to restless nights. A steady glucose response supports deeper, more restorative sleep.
“Modern food works against our biology. My vision is to reduce the negative impact of modern meals by modulating digestion locally in the gut, creating greater metabolic stability one meal at a time.”
Founder of SIGRID World-leading expert in metabolic health
Our Scientific and Clinical Advisory Boards
M.D., Ph.D. in Medicine, specialized in obesity research and metabolic disease with expertise inadipose tissue biology and twin study methodology
Ph.D. in Biomaterials, specialized inbiomedical research and materialcharacterization techniques
World-leading expert in metabolic health and longevity expert
Ph.D. in Organic Chemistry, specialized in the design and - production of synthetic mesoporous silica, 10 years of experience in scientific research in polymers
Rated 4.7 / 5.0 by 20,000+ reviews
Customer Reviews
Customer Reviews
Overall rating: 4.7 / 5 from 346 reviews.
I do find that I feel bloated but it does help with sugar cravings and I feel full sooner. I am on vacation so can’t weigh myself to see if there is any loss. It’s hard to tell as my stomach is often bloated. I am also very disappointed that I decided to skip the trial pack and just subscribe only to find if I had waited to subscribe I could have had a substantial discount on my first order. When I asked about applying it to my next shipment I was told no. I think that’s pretty unfair.
Andrea B. 4/5 Verified
Im very happy with your product. Its keeping my blood sugar in check and I have lost weight.
Loretta O. 5/5 Verified
Definitely curbs my appetite and cravings. I love that it is not a pill!
Sabrina R. 5/5 Verified
I started Carb Fence because I have difficulty with snacking especially in the evenings. I have lots of food noises in the evening and it is worse if I am tired or have been working hard in the garden due to the extra physical work. Before starting Carb Fence, I would just keep eating. Within a week of starting Carb Fence, the food noises went away almost completely. I am now in my fourth week of taking Carb Fence. I can ignore what little food noises went there is. On days when I work in the garden and I need more calories, I eat a modest number of extra calories instead of snacking all evening. I have been tracking my calories and am now consistently under my calorie goal 6 days each week and only over by about 50 on the 7th day - usually from going out to eat. I have lost 2.5 pounds in 3.5 weeks with Carb Fence. (I gained 15 pounds in the 12 months before starting Carb Fence so this is a big deal for me.) I have more energy mentally and physically so other aspects of life are improving as well. I am looking forward to the next month with Carb Fence.
Marilyn F. 5/5 Verified
It tastes good. Need to order more for results
Carolyn P. 5/5 Verified
So far - I hope it’s working - I have my sister and niece trying it too …
Cassandra L. 5/5 Verified
It does exactly as promised. The food noise is gone and I have no desire to snack. I am eating less and feeling full. No negative side effects at all. I have lost almost 5 pounds in 3 weeks. The cost us quite reasonable. I'm so happy to have found Sigrid.
Connie M. 5/5 Verified
My cholesterol is low now !!!
Gretchen S. 5/5 Verified
It was nice while is used it. I got used to the taste. It seemed to work some.
April H. 4/5 Verified
It seemed To help With cravings
Magdalene L. 5/5 Verified
I’m using it for weight control. It’s been 2 weeks and I’m down 2.3 pounds. Very happy. I’ve been stuck for months.
Lynne P. 5/5 Verified
Absolutely love this product
Denise T. 5/5 Verified
Carb Fence reduces my blood sugar response to meals and helps keep my A1C in target range without the need for any other glucose control medication.
Wendy L. 5/5 Verified
Sigrid really helps in suppressing your appetite. Even if there were food in front of me, I was not tempted to eat any. I feel fuller and does not get hungry for hours. I love Sigrid!
Carla W. 5/5 Verified
This works. I don’t write reviews. I had already lost about 20lbs but was struggling with the final 5-8lbs. I would lose a little and drift right back up. Carb-Fence was a total game changer to get me over the hump. It stabilized my blood sugar and I assume that meant also my insulin. After a couple of weeks… yes the weight started to drop again but more importantly…. the fat . I was keeping the muscle and shedding the fat. Now I’m at my goal weight and it’s helping me stay there. For me “maintenance” can be harder than losing. This product has allowed to expand my diet without completely sabotaging my weight loss. I’m a convert.
Anne-marie M. 5/5
Product works as promised. Consume one packet followed by a full glass of water. Feel full quickly. Urges to eat sugar decreased significantly. Weight loss consistent.
Pietra M. 5/5 Verified
It took about a month for me to see a difference , i think i have now lost a few pounds. Some days i feel like it helps with appetite control and a feeling of fullness. I hope that my journey continues in this direction !
Gina D. 4/5 Verified
I ordered the trial pack and have only used it about five times, but I have noticed a reduction in my post meal glucose readings when I have had carbs. There was only one time when I had carbs and I took Carb Fence before eating that my glucose reading was still over 160 post meal, which is pretty high for me. I am new to this diagnosis, so I haven't had much experience tracking my numbers and I would have to use it several more times to be sure it's beneficial to me. It looks positive so far.
Yonique L. 4/5 Verified
I don’t know if this does what it claims it should, but I do know that I feel a lot better when I take this, especially when I eat
Denise T. 5/5 Verified
I can’t afford it but I did love it! I also do not want a subscription
Janice F. 5/5 Verified
I really have been doing this for almost three months. Works great and keeps the snacking down.
Anna W. 5/5 Verified
Helps regulate my glucose and I think it helps with sugar cravings.
Loretta O. 5/5 Verified
Although I have not lost weight in the couple of months I have been using CarbFence, it is has definitely gotten rid of the gnawing in my stomach that could never get satisfied. It also helps with staving off hunger pangs, if I listen to my stomach and not the psychological needs.
Margaret C. 5/5 Verified
Losing weight without the medication side effects!
Spring H. 5/5 Verified
I can’t afford it though and the subscription status is a turn off. I will not sign up for a subscription
Janice F. 5/5 Verified
Helps quell tendency to eat sweets; helps to focus on nutritious main meal
Zoe P. 5/5 Verified
It seems to work in a gentle way
Mrs L. 5/5 Verified
Easy to take. Taste is good. Helped me.
Samuel P. 4/5 Verified
I started Carb Fence almost 1 month ago. There are absolutely no adverse side affects that I have experienced. I was a little apprehensive at first because I do have digestive issues. However because it is FDA approved and considered food grade and not a drug, I was a little more confident in trying. Then when the case came in,also I was a little leery about trying it, not knowing how it would taste. Let me assure you, the taste is refreshingly good, and I don’t “dread” having to take it before meals. The greatest part of all of this is that I have actually lost 5 lbs. I’m not trying to lose a great amount of weight, but I am now 5 lbs closer to my goal. The cost is not a great concern for me, but I did purchase the discount bulk quantity, and having the extra boxes on hand helps. If I lose another 5 lbs while using Sigrid Carb Fence, I will most likely continue taking the gel indefinitely because I do feel as though the product has assisted me with hunger control & not absorbing carbs.. Thank you SIGRID for creating a safe non-drug product to enable people who are looking for an alternative to GLP-1 treatment.
Donna G. 5/5 Verified
So far so good!
Georgette J. 5/5 Verified
This product worked very well for me. My fasting BS went from 130 to 115 and my after meal BS went from around 200 to 150! I, however, was approved for the new Wegovy Medicare D program and was advised to discontinue the glucose stabilizer until I have a better idea of my BS.
Terrence O. 5/5 Verified
Since started on this pill it has worked for me my blood sugar has decrease significantly love the product will definitely repurchase.
Yumarie C. 5/5 Verified
It works and I love it
Maggie M. 5/5 Verified
Great product, helps with my blood sugars
Scott M. 5/5 Verified
I have taken Sigrid with low calorie diet and lost 1 lb weekly for 6 months. I have now stuck for 3 months but continue the same regime to maintain weight. I highly recommend for appetite control.
Rose G. 5/5 Verified
I have doing this plus a berberine supplement, and my blood sugar levels have consistently been 112 for the past week.
Petra Q. 4/5 Verified
It actually works. Still use common sense of course...but if you want a slice of pizza, or a few bits of desert when out with friends, it limits the amplitude and duration of the spike. Keeps things within the "green zone" for me. Kept some with me at all times on last week's trip to Boston. Warning...there are "anti spike" concoctions out there...they didn't do anything for me (and I canceled). I also think it's helped my weight loss! SIGRID really works.
Gene M. 5/5 Verified
I like the way a lot of my cravings have become less and less but I have not lost a pound yet and it is very expensive. Please do not send me any more product. I want to cancel future orders. Thank you, Eileen Fuhrmeister Eileen8624@duck.com
Eileen F. 3/5 Verified
This is actually a great product it makes you feel full. Makes you feel better.
Denise T. 5/5 Verified
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