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Top-Rated Products
Natrol Carb Intercept -- 120 Capsules (25)
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Biochem Sports Carb Phaser 1000 Phase 2 -- 120 Vegetarian Capsules (8)
NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules (82)
Natrol Carb Intercept® with Phase 2® Starch Neutralizer -- 60 Capsules (9)
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Top Rated Product
NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

NSI Carb Blocker with Phase 2®  is a natural extract from white kidney beans that may help diminish the effects of the enzyme responsible for the absorption of carbohydrates. The Carb Blocker starch-neutralizer nutrient helps to inhibit the digestive enzyme alpha amylase before it can convert starch into glucose (sugar), and then fat. If these sugar calories are not converted to "fuel" and stored as fat, then the result is weight gain. If you are looking to complement your diet and exercise program, simply take two capsules, along with 8 ounces of water, at the beginning of a meal that contains carbohydrates-such as starch-rich pasta and potatoes.  . Did You Know? All NSI supplements are packaged in HDPE (High Density Polyethylene) bottles. These bottles keep moisture vapor out, protecting the freshness and integrity of their contents, and are 400% more effective compared other brands currently using PET (Polyethylene Terephthalate) bottles. HDPE bottles do not break as glass can and are also recyclable so we urge you to please recycle them.

Average Customer Rating: 4.28 out of 5 4.3 out of 5
70 of 82 (85%) customers would recommend this product to a friend.
Product Details

Customer Reviews for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Top 1000 Contributor Top 1000 Contributor
Overall Rating: 5 out of 5 5 out of 5
Great Product, June 28, 2009
By solacemoon from Illinois

"I use this product when I have meals with high carbs I believe it is working I'm not putting on weight and I don't feel that heaviness afterwards like you usually do after a high carb meal.
I think this product is a great idea and I feel less guilty and can enjoy eating what I like."

Age: 35-44
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Enhanced performance
Duration of use: Less than 30 days
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Review 2 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Good Product, June 4, 2009
By Nondescript from Oregon
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"This product worked as described and intended. Have recommended same to family & friends."

Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 3 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Really works!!!, May 23, 2009
By Bubba88 from Central, New Jersey
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I purchased this product after I read all of the reviews. I was little skeptical at first but I haven't gained any weight since I started taking this product! It's great really works!!! I love carbs but don't want to gain extra pounds if I can avoid it...This is it!!! I finally found the product that actually work!!!!"

Age: 35-44
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Less than 30 days
1 of 1 people found this review helpful.
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Review 4 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 4 out of 5 4 out of 5
It really works!, May 15, 2009
By Katm from SF, CA
Value: 4 out of 5 4 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I can honestly say that this product has made a difference in my life. I started a low carb diet to facilitate my weight loss. I have been missing my pasta and I have a favorite dish at one of my restaurants that I have had a hard time giving up. I take these pills 15 minutes before the meal and they work. I have not gained any weight since using these pills"

Age: 35-44
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Friend
Reason for usage: Promote overall health
Duration of use: Less than 30 days
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Review 5 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 4 out of 5 4 out of 5
Good, May 8, 2009
By krystal23 from Atl GA
Value: 5 out of 5 5 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 4 out of 5 4 out of 5

"This product seems to work well if used consistently. I forget to do that and weight goes back up. Used and not forgetting it does work though."

Age: 25-34
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Less than 30 days
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Review 6 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 4 out of 5 4 out of 5
good purchase, April 29, 2009
By majoorje from Palm Bay, Fl.
Value: 5 out of 5 5 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 4 out of 5 4 out of 5

"Does the job. It's well on it's own."

Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Less than 30 days
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Review 7 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Great product, great price, March 29, 2009
By Anonymous Reviewer
Value: 5 out of 5 5 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 4 out of 5 4 out of 5

"I really like this Phase 2 carb blocker. I only wish you also had it with fat metabolizers in it. But it is very effective as it is. I don't put on weight, as I used to before this, when I get off my diet and overeat carbs!"

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Review 8 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Top 500 Contributor Top 500 Contributor
Overall Rating: 4 out of 5 4 out of 5
I love my carbs, March 7, 2009
By piranha from Wisconsin
Value: 5 out of 5 5 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I love my carbs and this helps me to enjoy them without stress."

Age: 45-54
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
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Review 9 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Carb Blocker, January 31, 2009
By Bodaceous from North Carolina
Value: 4 out of 5 4 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 5 out of 5 5 out of 5

"For those of us on low carb regimes, this product is a real help.

Often it is difficult to completely get away from some of the higher carbohydrate foods. I keep Carb Blockers in my purse all the time."

Age: 65-74
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Over 180 days
2 of 2 people found this review helpful.
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Review 10 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 3 out of 5 3 out of 5
Mixed feelings, January 11, 2009
By Shadowcat from Michigan
Value: 3 out of 5 3 out of 5
Quality: 3 out of 5 3 out of 5
Effectiveness: 3 out of 5 3 out of 5
Satisfaction: 3 out of 5 3 out of 5

"I received the product on Christmas Eve. Although I've only lost a few pounds since, I also didn't gain any weight with all the available holiday goodies, that I did indulge in.

I've also noticed that it seems most effective if I take two tablets 10-15 minutes before eating as opposed to 5-10 minutes as recommended on the bottle. The best part is that it's killed my desire to munch between meals.

I'm going to stick with it for a while, and see if the progress picks up teh pace now that I've got a little more free time to devote to a little more exercise."

Age: 25-34
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Less than 30 days
1 of 1 people found this review helpful.
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Review 11 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Top 100 Contributor Top 100 Contributor
Overall Rating: 4 out of 5 4 out of 5
Best price., January 7, 2009
By maddie12 from michigan
Value: 4 out of 5 4 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 4 out of 5 4 out of 5

"This NSI carb blocker is better priced and with the same ingredients that the others have, but don't think all your weight problems will go away with this--NO, not even close! But I think it does help on the meal/meals you have that are loaded with extra carbs."

Age: 35-44
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
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Review 12 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 2 out of 5 2 out of 5
Ineffective, January 4, 2009
By Beachpeach from Orange County, CA
Value: 2 out of 5 2 out of 5
Quality: 2 out of 5 2 out of 5
Effectiveness: 1 out of 5 1 out of 5
Satisfaction: 1 out of 5 1 out of 5

"I did not see that it did anything for me. I bought it in conjunction with Hoodia in the hopes that I could lose a few pounds, but using it with high carb meals.. not only did I not lose any weight, but I actually gained a pound or two and I wasn't overeating! I certainly won't buy it again."

Age: 55-64
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 13 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
January 3, 2009
By ChrisH09 from Pa
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I haven't been using the product for very long but it does seem to be working. I have already recommended it to a friend."

Age: 45-54
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 14 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Better than Hoodia for Me, October 4, 2008
By BigEddieCalzone
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I was surprised at how effectively this destroyed my appetite for the rest of the day; took it in the morning with two pancakes and some scrambled egg whites. Did not feel hungry again until dinner! This is incredible and though a stretch for me financially, it's an invaluable supplement!"

3 of 3 people found this review helpful.
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Review 15 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Top 500 Contributor Top 500 Contributor
Overall Rating: 4 out of 5 4 out of 5
Trusted By Pasta Eating Road Warrior, September 13, 2008
By BigRob from New York
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 4 out of 5 4 out of 5

"The NSI Carb Blocker With Phase 2 Starch Neutralizer is a very good product. While I generally restrict my intake of simple carbohydrates, this becomes difficult when traveling and conducting business with clients and colleagues. This product opens up my choices at restaurants and allows me to focus on the business at hand. By inhibiting the digestive enzyme alpha amylase, which is responsible for starch to sugar conversion, the white kidney bean extract in the NSI Carb Blocker product effectively reduces the calories that are stored by the body as fat. When eating restaurant portions of carbohydrate-laden meals, this product can help avoid the 300+ calories of carbs that would be stored from that oversized plate. Ultimately, the NSI Carb Blocker reduces the "rework" I have to do in the gym after a business trip."

Age: 35-44
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
2 of 2 people found this review helpful.
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Review 16 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 3 out of 5 3 out of 5
How can you tell if it works?, September 5, 2008
By LibraryJoe from Maryland

"I bought these "Carb blockers" to assist me with my low carb regimen. However, there is no way to know if they are effective or not effective."

Age: 55-64
Gender: Male
Daily supplement usage: 1-2 supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: 30-60 days
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Review 17 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
It works!, August 23, 2008
By VeVe from Birmingham, AL
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I like the way this product blocks carbs without being so harsh on my system!"

Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Reason for usage: Specific health concern
Duration of use: Less than 30 days
2 of 2 people found this review helpful.
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Review 18 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 3 out of 5 3 out of 5
Disappointed, August 22, 2008
By Mabella from Hong Kong
Value: 3 out of 5 3 out of 5
Quality: 3 out of 5 3 out of 5
Effectiveness: 2 out of 5 2 out of 5
Satisfaction: 2 out of 5 2 out of 5

"I have read all the reviews and decided to try this product myself. I am taking this together with Tonalin-CLA for over a month, I feel bloated and constipated, might have even gained a bit of weight."

Age: 45-54
Gender: Female
Daily supplement usage: 6+ supplements daily
Reason for usage: Specific health concern
Duration of use: 30-60 days
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Review 19 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Good product, August 14, 2008
By Tikafitz from San Francisoc

"I have taken this product on and off for the past few years. It allows me to not worry about eating too much carbs. I love breads and pastas and would never be able to give them up. I can maintain my weight easily while taking this, one or two before a starch heavy meal. I do exercise 5 x a week and have a good diet. It is really good for keeping off the last 5 lbs or so."

Age: 45-54
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
2 of 2 people found this review helpful.
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Review 20 for NSI Carb Blocker With Phase 2 Starch Neutralizer -- 1000 mg - 120 Capsules

Overall Rating: 4 out of 5 4 out of 5
Seems to work, August 4, 2008
By bammbamm from Cary
Value: 4 out of 5 4 out of 5
Quality: 4 out of 5 4 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 4 out of 5 4 out of 5

"I only have a qualitative review. AFter taking the pils and eating a sandwich or chips (corn or potato), it seems to work similar to fiber, in that you can feel your stomach rumbling and it pushes the food through. I have bought two bottles now, and will buy another when this runs out. It does help keep weight down, and even aid in losing, but that's my feeling, i have not done any quantitative analysis."

Age: 45-54
Gender: Male
Daily supplement usage: 1-2 supplements daily
Referral source: Other
Reason for usage: Promote overall health
Duration of use: 30-60 days
2 of 2 people found this review helpful.
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