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Vitamins
Top-Rated Products
NSI Nattokinase NSK-SD -- 90 Capsules (12)
Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules (34)
NSI Nattozimes™ -- 3000 FU - 60 Capsules (9)
Reviews Home >  Supplements >  Nattokinase
Top Rated Product
Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Science-Based Nutrition. 2,000 FUs Nattokinase is an enzyme derived from “natto”, a traditional fermented soy food popular in Japan. During the natto production process B. subtilis natto, a friendly bacteria, ferments boiled, non-GMO soybeans, releasing nattokinase. Best Nattokinase contains pure nattokinase enzyme with all Vitamin K removed.

Average Customer Rating: 4.62 out of 5 4.6 out of 5
33 of 34 (97%) customers would recommend this product to a friend.
Product Details

Customer Reviews for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 4 out of 5 4 out of 5
September 24, 2009
By mpm from St. Petersburg,fl
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

"thru self reseach I find this product very important to my health"

Age: 65-74
Gender: Male
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
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Review 2 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Top 25 Contributor Top 25 Contributor
Overall Rating: 5 out of 5 5 out of 5
Excellent Affordable Enzymatic Therapy, September 11, 2009
By jayersgould from Bay City, MI
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

"I take these sometimes with meals to aid in the digestion process or on an empty stomach to help my body go into "repair mode." This is one of the most potent and effective enzymatic supplements you can take. The price is also much more affordable than I've seen anywhere else."

Age: 35-44
Gender: Female
Daily supplement usage: 6+ supplements daily
Reason for usage: Promote overall health
Duration of use: 30-60 days
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Review 3 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Top 50 Contributor Top 50 Contributor
Overall Rating: 5 out of 5 5 out of 5
September 9, 2009
By vitaminman from Florham Park, NJ
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 has helped my mother significantly lower her dosage of blood-thinning medication.

Her heart doctor says that if her blood tests continue to show improvement, she will be able to stop her medication completely.

This would be FANTASTIC, as she has been on blood-thiining medication for seven years, and has been told she would be on it for the rest of her life.

No small feat, considering her history of near-fatal blood clots.

She will never be without this wonderful product!"

Age: 35-44
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Physician
Reason for usage: Specific health concern
Duration of use: 61-180 days
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Review 4 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 4 out of 5 4 out of 5
Good value, September 8, 2009
By aurcr from Barnegat , NJ
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

"Effectively helps a better blood circulation."

Age: 55-64
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 5 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
surprising results, July 7, 2009
By slushee from South Carolina
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 tried this product , hoping to relieve pain in my ankle. I tried it based on reviews, but was somewhat skeptical. I found relief within a week, I am sold on this product!"

Age: 45-54
Gender: Male
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: 30-60 days
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Review 6 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
Other Items, June 2, 2009
By bluefish363 from Green Bay WI
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 seem to even have more energy."

Age: 55-64
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Friend
Reason for usage: Specific health concern
Duration of use: 30-60 days
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Review 7 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
natto, March 26, 2009
By frankeieio 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

"Yes, I'm still alive! And I feel smarter too."

Age: 45-54
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: 30-60 days
0 of 1 people found this review helpful.
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Review 8 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
Best ever product, January 25, 2009
By Eagle58
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 have never felt better-noticed a change in only 2 days! Product lives up to it's claims."

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Review 9 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 4 out of 5 4 out of 5
Just started taking it, November 5, 2008
By islandlady from Eastern Caribbean
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

"We were out of the country when we ordered this, so I really just started it and haven't taken it enough to say whether it is good, but it's not bad. The only reason I didn't give 5 stars is the lack of time I've been taking the product, so it's hard to rate it accurately."

Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Friend
Reason for usage: Promote overall health
Duration of use: Less than 30 days
0 of 1 people found this review helpful.
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Review 10 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
Doctor's Best Best Nattokinase, July 16, 2008
By prehmorg
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 is one of the best buys for this miracle enzyme I have found! Love it!"

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Review 11 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 4 out of 5 4 out of 5
nattokinase, November 26, 2007
By Dilou
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 is one of the best values for this type of product. It's twice the strength of other brands, you get more capsules, and it costs less!! Who could ask for more. Add to that the effectiveness factor, and you've got a customer for life."

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Review 12 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
Nattokinase, November 6, 2007
By Tracer from Chattanooga, TN
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

"Great product, better price!"

Age: 55-64
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: Over 180 days
0 of 1 people found this review helpful.
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Review 13 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Top 500 Contributor Top 500 Contributor
Overall Rating: 5 out of 5 5 out of 5
This product is a Godsend, October 30, 2007
By Eek3 from Washington DC
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 have been taking nattokinase for less than a month, but I can feel the improvement in my circulation already."

Age: 65-74
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
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Review 14 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Top 500 Contributor Top 500 Contributor
Overall Rating: 5 out of 5 5 out of 5
Helps varicose veins, October 7, 2007
By leafish
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 tend to get blood clots from my varicose veins. This product helps keep the clots from forming and aids in dissolving them. I have had many fewer since I started using the Nattokinase."

3 of 3 people found this review helpful.
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Review 15 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 4 out of 5 4 out of 5
meets my needs, August 16, 2007
By zeus
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 is a good value. It meets the dosage I need in one capsule, with the vitamin K removed."

Daily supplement usage: 6+ supplements daily
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 16 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
Helps with Circulation, July 30, 2007
By Snicker
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

"If you need better circulation this is your product. I love it. By using the product my circulation has improved a great deal and my heart is happy too. Thank you!"

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Review 17 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 4 out of 5 4 out of 5
Best productnfor the buck., June 16, 2007
By Curt
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 have been using this product since my heart attack,and I feel great."

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Review 18 for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules

Overall Rating: 5 out of 5 5 out of 5
Quality product, May 16, 2007
By marched
Value: 4 out of 5 4 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

"Hello,
I am and my family are pleased with the results of using this product. It delivers what it promises. My family will continue to benefit from this fantastic alternative suppliment. Also like to mention; VitaCost makes it affordable.
Thank you."

0 of 2 people found this review helpful.
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Ratings-Only Reviews for Doctor's Best Best Nattokinase -- 2,000 FUs - 90 Vegetarian Capsules Based on the average of (16) ratings-only reviews
Overall Rating 4.56 out of 5 4.6 out of 5
Would recommend?: Yes  15 out of 16
Value 4.812 out of 5 4.8 out of 5
Quality 4.5 out of 5 4.5 out of 5
Effectiveness 4.375 out of 5 4.4 out of 5
Satisfaction 4.562 out of 5 4.6 out of 5