Best Carbohydrate Blocker Supplements of 2025

"I use this product because it helps block carbs when I have meals with starch."

"I have been taking this supplement for 4 years and I'm very pleased with it."

"While I don't expect to drop a lot of weight, I find that it makes losing weight easier when I take them, especially on a low carb diet."

"I appreciate that I can take something before indulging in foods I usually avoid, which helps me enjoy them without feeling guilty. I'm not sure if it works, but it feels good!"

"I haven't finished using it yet, but I noticed an improvement after taking a capsule when I felt unwell from sugar. It helped me feel better, and I'm hopeful for the promised results."

"I've purchased this product a few times, but unfortunately, it didn't lower my A1C as I had hoped. I was really disappointed when my blood work showed no change. I suggest you save your money for something effective."

"I started using this product to replace my expensive weight loss supplements, and it's been a game changer! I take it regularly and have noticed a significant difference in my bloating after meals. When combined with intermittent fasting, I'm losing weight steadily. This really helps block carbs and fats, especially on busy days when I need a quick meal."

"After losing 20 pounds through low-carb dieting and intermittent fasting, I decided to try these pills for those carb-heavy days. To my surprise, they really work! I managed to maintain my weight or even lost a pound or two after indulging. I take two at the beginning of my meals, and the results have been amazing!"

"I switched to this carb blocker after trying a few others, and I’m impressed! I take it before my carb meals, and my weight doesn't fluctuate nearly as much as it used to. It also helps with bloating, which is a huge plus. The value is great since I get 30 servings at a higher dosage compared to other brands. This is definitely a solid purchase!"

"I've used carb blockers for years, and these are the first ones that made a noticeable difference. Since starting, my weight gain has almost stopped. Now, I'm focusing on reducing my carb intake for weight loss. I do doubt that just one per meal will be enough."

"After hurricane Ida, I gained a lot of weight and felt very depressed. I started using the Keto Blocker, and since January, I've lost an incredible 60 pounds! I'm only eating what I need, and I don't feel jittery like with other supplements. This stuff REALLY WORKS and is affordable. Even after running out, I maintained the feeling of fullness. I went from a size 16 to a 12! I used to eat a whole medium pizza, but now I'm satisfied with just a small slice. I'm amazed!"

"While I'm not overweight, I do have some fat. Since taking this supplement, I've lost some weight and noticed that I don't crave high-carb foods anymore. I'm on a low-carb diet but still eat some fruits. I’m really pleased with how this product has worked for me."

"As we all know, as we get older, weight gain can occur despite unchanged eating habits. After taking this product with a vinegar supplement, I've noticed slow but steady weight loss. I can feel my hips again after years of struggle. I did experience leg cramps when I combined it with Forsylyn, but eliminating that resolved the issue. I've been using it for two months, and while I don’t track my weight, my stomach looks smaller, and I feel healthier overall. Thanks for a product that truly works!"

"I originally ordered this product and was disappointed to find it only contains 600mg of white kidney bean extract. My previous carb blocker had 1200mg, and even taking two of these would only match that. However, after trying it, I upped my dosage to 1200mg and it worked quite well. I had a one-star experience initially due to the misleading dosage, but the company's customer service is outstanding. They refunded my money and offered me a free bottle of any product to help with my weight loss. Impressive support! I would recommend them."

"I've been using this product for a week and unfortunately, I have gained weight each morning after taking it with my meal. I only have carbs in one meal daily, and despite taking one or even two pills, I continue to see weight gain. It's frustrating, and I can't keep trying if this keeps happening. I'm going to focus on clean Keto instead."

"I've been taking the Berberine Supplement 1300mg for a few weeks, and I can truly say it has made a significant difference in my health routine. The blend of Berberine HCl, Ceylon Cinnamon, Bitter Melon, and Gymnema is fantastic for supporting my overall wellness, especially in managing my blood sugar levels and weight."

"After extensive research, I decided on this brand for my Berberine Supplement. I've only been using it for three weeks, but it has completely eliminated my bloating issues and digestive problems. I've even lost 8 pounds in that time! This supplement feels like a miracle for me, especially after my hysterectomy and going through menopause. My energy feels youthful again, and I’m hopeful it will help with my cholesterol issues too!"

"I purchased this supplement to combat my sweet tooth while dieting. I still enjoy treats like cookies and candies occasionally. So far, I haven't noticed any negative effects, and I appreciate how it helps control my sugar levels. I will continue monitoring its effectiveness."

"I’ve only been using this for two weeks, but my sugar levels are staying low thanks to the supplement. I plan to keep using it and monitor my diabetes."

"I can’t determine if it’s effective since I haven’t lost weight, but at least I haven’t gained any."

"I’m on my second bottle now, and I’ve noticed that I don’t gain weight even when I’m off keto or eating carbs without working out."

"I absolutely love this product! It allows me to enjoy carbs without guilt. As a fitness professional, I not only use it myself but also recommend it to my clients!"

"I started using this supplement the very day it arrived, but I found it didn't help curb my appetite. Unfortunately, I had to return it. On a lighter note, it has a smell reminiscent of grape swisher sweets."

"This product has been a game-changer for me! I've been losing weight and I would definitely recommend it to others."

"I gained a lot of weight due to depression and medication, reaching 96kg (211lbs) at my heaviest. I started using Sleep+Burn at 92kg (203lbs), and within six weeks, I lost 7.5kg (18lbs) without changing my activity level. I now wake up feeling hungry and ready for breakfast, no longer craving late-night snacks. My goal is to reach the 70s (kg)!"

"I had high hopes for this product, especially because I was looking for weight loss and better sleep. Upon opening, there was an awful smell, but I tried it anyway. The first days were fine, but on the fourth night, I experienced an intense reaction—pain, sweating, and anxiety. I felt terrible the next day and had to stop taking it. Customer support was unresponsive. I would urge others to be cautious with this supplement."

"I typically don’t write reviews, but I felt compelled to share my experience. It’s important to remember that effects vary for everyone, and this product works best when combined with exercise and a healthy diet. I have a slow metabolism and struggle with bloating, but when I take Sleep+Burn while sticking to my routine, results are noticeable. It’s definitely worth trying!"

"I've found this product to be pretty effective for blocking carbs, just what I was looking for!"

"Having used this before, I know it's not a complete solution for blocking all carbs. I take it with high-carb meals and feel it's aided my weight loss alongside a healthy diet and exercise."

"Although I've been using this for five days, I haven't seen any weight loss results. There were no side effects, but it didn't help with appetite suppression—I feel it was a waste of money."