Doctor's Best Nattokinase 2000 FU
by Doctor's Best
"NSK-SD nattokinase at 2000 FU — the Japanese fibrinolytic enzyme for cardiovascular and circulatory support"
Overview
Doctor's Best Nattokinase provides 2000 FU (fibrinolytic units) of NSK-SD nattokinase per capsule. Nattokinase is a fibrinolytic enzyme derived from natto, a traditional Japanese fermented soybean food. It has been extensively studied for its ability to break down fibrin (a protein involved in blood clotting), supporting healthy circulation and cardiovascular function. NSK-SD is the most studied nattokinase brand, with the vitamin K2 removed to avoid interference with blood-thinning medications.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Nattokinase (NSK-SD) | 2000 FU |
Pros & Cons
What We Like
- NSK-SD (vitamin K2 removed)
- 2000 FU clinical dose
- 90 capsules
- 8,200+ reviews
- Under $22
What Could Be Better
- Must avoid with blood thinners
- Soy-derived
- Not for pre-surgery use
- Single enzyme
Who Is This For?
Best For
- Cardiovascular support
- Circulatory health
- Those wanting fibrinolytic support
- Those interested in Japanese longevity practices
Not Ideal For
- Those on blood thinners (warfarin)
- Pre-surgery patients
- Soy-allergic individuals
- Those with bleeding disorders
Our Verdict
Doctor's Best Nattokinase is the gold standard fibrinolytic — NSK-SD at 2000 FU with vitamin K2 removed for safety. A key supplement in cardiovascular protocols, but must be avoided with blood-thinning medications.
Alternatives to Consider
No direct alternatives listed for this product yet.