Higher Intake of Vitamin K Associated with Lower Risk of Bone Fracture Late in Life

Bone fracture is a major concern for many women as they age, but new research suggests that a higher intake of vitamin K may help when taken earlier in life. Researchers from Edith Cowan University’s Nutrition and Health Innovation Research Institute believe they have found a way to help prevent bone fracture when steps are taken in midlife to help the body stay healthy.

Bone fractures are a serious health concern, particularly for older women. According to the National Osteoporosis Foundation, 1 in 3 women over 50 will experience a bone fracture due to osteoporosis. Osteoporosis is a condition that causes the bones to become weak and brittle, making them more susceptible to breaks. In addition, older women are more likely to fall, which can lead to fractures. Fractures can cause significant pain and disability and can even be fatal in some cases. As a result, it is important for older women to be aware of the risk factors for osteoporosis and to take steps to prevent the condition.

For this new study, the team of researchers, in collaboration with the University of Western Australia, looked at the relationship between fracture-related hospitalizations and vitamin K intake in approximately 1,400 older Australian women over 14.5 years.

It was found that women who ate more than 100 micrograms of vitamin K1 were 31% less likely to have any fracture compared to those who consumed less than 60 micrograms per day which is the current intake guideline in Australia for women. One hundred micrograms are the equivalent of approximately 125g of dark leafy vegetables or one-to-two servings of vegetables.

The results were even more positive when looking at hip fractures. Women who consumed the most vitamin K1 reduced their risk of hospitalization by almost half (49%).

These results add to mounting evidence of the health benefits of vitamin K1, including previous studies that found it to enhance cardiovascular health.

Study lead Dr. Marc Sim explained, “Our results are independent of many established factors for fracture rates, including body mass index, calcium intake, Vitamin D status, and prevalent disease.”

“Basic studies of vitamin K1 have identified a critical role in the carboxylation of the vitamin K1-dependant bone proteins such as osteocalcin, which is believed to improve bone toughness.”

While many people may think consuming this much K1 is hard to do, it isn’t the case. It can easily be achieved by consuming between 75–150g, equivalent to one to two serves, of vegetables such as spinach, kale, broccoli, and cabbage each day.

Supporting Bone Health

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