Natural Vitamin K2
since 1997

menatto® vitamin K2 (MK-7)
The Japanese Original

Developed through a natural fermentation process over 20 years ago, menatto® is the genuine Japanese vitamin K2 (MK-7). It is made in Japan, using a bacterial strain isolated from the traditional fermented Japanese food natto. It has been researched in Japan, by some of Japan’s most respected scientists. And it is distributed from Japan by J-Oil Mills, Inc., one of the leading edible oil producers in Japan with a history dating back to 1826. Welcome to The Japanese original.

• Natural Vitamin K2

  menatto® is produced through a natural fermentation process using B. subtilis natto, a beneficial bacterial strain used to make natto.

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• Clinically Researched

  menatto® is backed by ten well-controlled human clinical trials, all published in peer-reviewed scientific journals.

  Read summaries of menatto® clinical research

• Original Fermented

  menatto® is the original fermented vitamin K2 and has been incorporated into finished products across the globe for more than 20 years.

  Learn how menatto® is made

• Fully Traceable

  menatto® is manufactured by J-Oil Mills, a vertically integrated company that is able to trace all phases of menatto® production.

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• Highly Bioavailable

  menatto® is a highly bioavailable form of vitamin K

  more bioavailable than vitamin K1 more bioavailable than vitamin K2menaquinone-4 (MK-4)

• Premium Quality

  menatto® is manufactured in a GMP- and ISO 22000-certified facility and has achieved self-affirmed GRAS and novel food status.

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• Proprietary Branded

  menatto® is backed by original clinical research and a suite of intellectual property, including patents and trademarks.

  Read summary of menatto® clinical research Learn more about menatto® brand