Nattokinase Side Effects

and Dosage


Health Benefits of Nattokinase

Nattokinase and Blood Clots

Nattokinase and Fibroids

Nattokinase Side Effects

Nattokinase Dosage

Nattokinase Supplements

Nattokinase, because it is a naturally occurring enzyme derived from soy beans, is generally considered safe. Those with allergies to soy beans or other soy products may wish to avoid nattokinase for obvious reasons, but in terms of the general population, nattokinase seems unlikely to cause lasting harm. Nevertheless, nattokinase, which contains vitamin K, has been known to interfere with blood thinning drugs such as aspirin and Warfarin. If you are currently taking a blood thinning medication, it is essential that you consult your physician before taking nattokinase in case of adverse drug interactions. A physician may recommend that you reduce your dosage of medication or not take nattokinase at all.

It is also important to take into account the anticoagulant effects of nattokinase if you are planning to have surgery of any kind, as it may prevent blood from clotting and causing complications during healing. Furthermore, if you are pregnant, planning to become pregnant, or breastfeeding, you should consult a doctor before taking nattokinase.

nattokinase dosageNattokinase has not been shown to produce major adverse side effects. This is not to say that there are no side effects whatsoever. Rather, there is simply not enough research on nattokinase to determine with any certainty that it is free from side effects.

There are many nattokinase supplements on the market for over-the-counter consumption. Typical concentrations are 25, 50, and 100 mg per capsule, containing 20 fibrinolytic units (FUs) per milligram. The average amount of FU per serving is usually in the vicinity of 2,000 FU—although this can vary depending on the source and quality of the extract. The recommended daily dose for nattokinase is 100 mg three times a day, usually taken before meals but with a glass of water. Most supplement product information will echo this, and it is important to take all dietary supplements as directed. That is to say, do not exceed recommended dosage unless instructed by a physician.

However, it should be noted that since nattokinase has not been widely tested in clinical trials, it remains unknown if 300 milligrams daily (or any amount) constitutes the ideal or optimum dose. In any event, with any new drug or supplement, it is always a wise practice to begin at the lowest possible dose and gradually work up gradually over a period of days to weeks, always monitoring your health and staying alert to potential side effects.

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