Medically reviewed by Elizabeth Barnes, RDN Key Takeaways Vitamin K plays a role in blood clotting and bone health.Dark leafy greens like spinach and kale are rich in vitamin K.Canned tuna can provide ...

This comprehensive review examines vitamin B12 absorption, physiological roles, deficiency states, and dietary sources, with ...

Vitamin K is essential for blood clotting and healthy bones. It can be found in leafy greens, vegetable oils, and broccoli. Vitamin K is an essential nutrient that plays a critical role in blood ...

Vitamin B12 (cobalamin) is an important nutrient that strengthens your body's blood cells. It also nourishes your nerve cells and helps keep them healthy. B12 also assists in the formation of DNA.

According to a 2021 Consumer Survey on Dietary Supplements, eight out of 10 U.S. adults take some form of vitamin or mineral supplement. And more than half of U.S. adults take multivitamins to the ...

Some common medications can lead to vitamin and mineral deficiencies. Learn which medications can interact in this way.

Your body needs vitamin B12 for maintaining metabolism, producing DNA and red blood cells, keeping the nervous system healthy, and more (1, 2). Fortunately, most people get enough of this ...

If a person does not get enough vitamin B12, a doctor may suggest supplements containing more than the daily recommended dose. The body does not store excess vitamin B12, so taking extra is not ...

Vitamin B12 shots are injections that a doctor may prescribe to treat a vitamin B12 deficiency. They may be useful for those with gastrointestinal issues, older adults, vegans, and vegetarians. A ...