£6.75
Vitamin K2 belongs to the menaquinone family of vitamin K compounds, which differ from the more common K1 (phylloquinone) found in leafy greens. MK-4 is the short-chain menaquinone found naturally in animal products such as egg yolks, butter and certain organ meats, and is the form the body produces from K1 in small amounts.
Our tablets deliver 1,000mcg of pure MK-4 per tablet — a substantial dose that reflects MK-4's shorter half-life in the body compared with the longer-acting MK-7 form. Higher MK-4 dosing has been studied extensively in Japan, where it is used in the regulated treatment of certain bone-density conditions.
Approved EFSA Health Claims for Vitamin K:
| Vitamin K2 (MK-4) | 1,000 mcg | 1,333% |
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