Vitamin K?s main function is to help blot clot, according to WebMD. The vitamin may also help with osteoporosis, but the evidence is conflicting. Although vitamin K is an essential nutrient, most people receive enough vitamin K from their diets.Know More
Vegetables, such as kale, spinach, cauliflower and cabbage, supply vitamin K, according to MedlinePlus. Vitamin K can also be found in fish, liver and eggs. The bacteria in the gastrointestinal tract synthesize vitamin K as well.
Those at risk of a vitamin K deficiency include newborns and people who drink heavily, according to WebMD. In addition, celiac disease and other diseases that affect the digestive tract may interfere with vitamin K absorption, causing a deficiency.Learn more about Vitamins & Supplements
While potassium is represented by a "K" on the periodic table, it is not the same thing as vitamin K, says food consultant Jessica Bruso. Potassium is a mineral, while vitamin K is a vitamin.Full Answer >
People often assume that residents of sunny climates easily absorb sufficient vitamin D, but a surprisingly large number suffer from vitamin D deficiency, according to WebMD. For example, 40 percent of elderly Florida residents suffer from a lack of vitamin D.Full Answer >
Vitamin B-12 is taken when a person has a vitamin B-12 deficiency, according to WebMD. Vitamin B-12 is also taken to treat conditions such as Alzheimer's, high cholesterol, breast cancer and sickle cell disease. A doctor often recommends vitamin B-12 to treat heart disease.Full Answer >
A person may know he has a vitamin D deficiency if he suffers from muscle weakness and pain in the bones, according to WebMD. He may be especially at risk of the deficiency if he is a strict vegetarian, is dark-skinned and avoids going out into the sun.Full Answer >