Study: Vitamin K May Affect Bone Health

A University of Michigan School of Nursing study suggests that the impairment of vitamin K may affect bone health and contribute to osteoporosis.

Study leader Jane Lukacs found that one of the early effects of declining estrogen is the impairment of vitamin K function in bone even before any bone loss that could be attributed to menopause can be measured.

Our study suggests that the generally accepted level of vitamin K in healthy women is inadequate to maintain bone health just at the onset of menopause, Lukacs said.

In early menopause, women should increase intake of dark green vegetables and vegetable oils on a daily basis — and in adolescence and early adulthood, the incorporation of weight-bearing exercise is crucial, advises Lukacs.

Anyone considering vitamin K supplements should consult with their medical adviser first; people on blood thinners should not be taking vitamin K, noted Lukacs.

The findings have been presented at the Endocrine Society meetings and are published in the September/October issue of Menopause.