Natural Factors Vitamin K & D 120 mcg / 1000 IU 60 Softgel


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Natural Factors Vitamin K & D 120 mcg / 1000 IU 60 Softgel
Vitamin K & D features vitamin K2 as menaquinone-7 (MK-7), an advanced, fat-soluble form of vitamin K that serves multiple functions in the body. The K family consists of a trio of vitamins: K1 (phylloquinone), found naturally-occurring in leafy green vegetables and plant oils; K2 (menaquinone) which is present in butter, cows liver, eggs, certain cheeses and natto, a fermented soybean food; and K3, a synthetic form of the vitamin. K3 has been shown to have toxic effects on the liver and K1 doesn’t have adequate benefits on calcium metabolism to dramatically improve osteoporosis or atherosclerosis. Only K2 in the form of MK-7 has been shown to offer 24-hour protection from a single daily dose. Other commercially-available subtypes of K2, such as MK-4, only last four to six hours in the body and are required in much larger dosages to be effective.
Each softgel contains:
Nutri-KTM vitamin K2 (menaquinone) as MK-7 (from natto bean) 120 mcg
Vitamin D3 (cholecalciferol) 25 mcg (1000 IU)
Doses of vitamin K2 over 45 mcg daily may negatively interact with oral anticoagulant therapy.
Patients receiving blood thinning medications (warfarin) should not take vitamin K without consulting their health care practitioner.
Although there have been reports of toxic effects from vitamin D supplementation, the question of safety surrounding vitamin D ultimately boils down to the type of vitamin D used. In all known cases of vitamin D toxicity where the dose was intentional (as opposed to accidental overdose) the form used was D2, a synthetic form of vitamin D.
There has never been a published report of toxicity resulting from intentional doses of vitamin D3. Natural Factors only uses the naturally-occurring D3 form of vitamin D.

Additional information

Weight 0.15 kg


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