Description
Nature's Answer NSK-SD Nattokinase is made with a patented, branded form of nattokinase supported by over 50 studies on its fibrinolytic activity, isolated from natto produced from non-GMO, non-irradiated, fermented soybeans. Natto itself is widely eaten as a heart-healthy food in Japan, and nattokinase is the enzyme extracted from it.
How nattokinase works
Nattokinase has been shown to help degrade fibrin into a more soluble form. Fibrin is an insoluble protein mesh that can interfere with normal, healthy blood flow, which is why nattokinase is often researched alongside cardiovascular health and circulation. NSK-SD is the specific, patented form of nattokinase used in this product, and it is the ingredient most of the supporting research has actually been conducted on, rather than nattokinase as a general category.
What's in each capsule
Each vegetarian capsule provides 100 mg NSK-SD nattokinase, standardised to 2,000 FU. Other ingredients are rice flour, vegetable cellulose and calcium silicate, and the product contains non-GMO soy. It is certified vegan and gluten-free, and uses a vegetable cellulose capsule rather than gelatine.
When to take it
The label directs adults to take one capsule once daily on an empty stomach, preferably in the morning with 8 oz of water, or one hour before or two hours after a meal. This timing is worth following closely, since enzymes like nattokinase are generally absorbed better without food competing for digestion. Each 60-capsule bottle provides a two-month supply at this dose.
Who this suits
This is a good fit if you are specifically looking for a vegan, gluten-free nattokinase capsule, or if you want a nattokinase supplement with well-documented research behind the specific NSK-SD ingredient rather than a generic, unbranded nattokinase extract. It is also worth considering if you prefer clear guidance on timing, since not every nattokinase label spells out exactly when to take it relative to meals.
Who should be cautious
Do not use this product if you are pregnant or nursing, allergic to soya, or have a blood coagulation disorder. If you are taking an anticoagulant or other blood-thinning medication, speak with your doctor before taking this product. For more on nattokinase dosing, FU strength and who should exercise caution, our Nattokinase Benefits, Dosage & Side Effects Guide covers the research in more detail.
Storage
Store in a cool, dry place, out of reach of children.
