Nattokinase is an enzyme obtained by fermenting soybeans with the bacterium Bacillus subtilis — the traditional Japanese process, practised for nearly a thousand years, used to make natto. Nattokinase was first isolated and identified in 1987 by Dr. Hiroyuki Sumi at the University of Chicago, launching decades of research into its specific enzymatic properties.

Standardised at 20,000 FU/g (Fibrin Units per gram), each capsule delivers 2,000 FU of enzymatic activity — in line with the dosing used in the main clinical studies on nattokinase. Natto naturally contains vitamin K2 (menaquinone-7), which many people taking nattokinase prefer to avoid, particularly those on treatments requiring careful control of vitamin K status. Dynveo’s advanced purification process removes vitamin K2 entirely while preserving the enzyme’s activity, making the product suitable for a wider range of users.

Take 1 capsule a day, ideally with a meal and a large glass of water. This delivers 2,000 FU of nattokinase, the dose most commonly used in scientific study protocols. Can be taken morning or evening. It’s often discussed alongside coenzyme Q10, natural vitamin C or pine bark extract (pycnogenol) for complementary support — maintain supplementation over several weeks to properly assess its value.

Not recommended for people on anticoagulant or antiplatelet medication, due to nattokinase’s enzymatic action on fibrin. Pregnant or breastfeeding women and people with clotting disorders must consult a doctor before use. If scheduled for surgery, stop taking nattokinase at least two weeks beforehand. Do not exceed the recommended daily dose. Contains soy: avoid if allergic to soy. Store in a cool, dry place away from light and reseal the bottle tightly after use. This food supplement is not a substitute for a varied and balanced diet and a healthy lifestyle.

Why is this nattokinase guaranteed free of vitamin K2?

Natto naturally contains vitamin K2, which can interfere with certain medical treatments. Dynveo’s purification process removes it entirely, verified by testing on every batch, while preserving full enzymatic activity.

Can nattokinase be combined with other Dynveo supplements?

It’s often paired with natural antioxidants such as coenzyme Q10, pine bark extract (pycnogenol) or acerola vitamin C. Combining it with anything else affecting blood clotting should be checked with a healthcare professional first.

What’s the difference between FU/g and mg in nattokinase dosing?

Milligrams indicate how much extract is in each capsule (100mg here). FU/g (Fibrin Units per gram) measures actual enzymatic activity — a product can contain a high mg amount yet have low activity if the extract is weak. At 20,000 FU/g, each 100mg capsule delivers 2,000 FU, matching the activity level used in reference studies.

Herba Barona is an independent specialist supplement shop in the heart of Paris — established in 2006. What you order is genuinely on our shelves: we ship from our own stock, with no dropshipping and no long waits.

Visit us at 10 rue Théophile Roussel, Paris 12 — or use Click & Collect and pick up your order in-store. We also deliver across France and Europe. Friendly, expert advice in English from our team.

Where is the shop?

Herba Barona is at 10 rue Théophile Roussel, 75012 Paris — a two-minute walk from Ledru-Rollin (line 8), close to Bastille. Open Tuesday to Saturday, 9:30 am–6:30 pm.

Can I order online or collect in store?

Yes. We ship across France and Europe under the same conditions as our French store, or choose Click & Collect to pick up your order for free at our Paris shop.