The importance of vitamin D in adult humans

1. Bone health: Vitamin D plays a key role in maintaining healthy bones by promoting the absorption of calcium and phosphorus, which are both essential for bone formation. Adequate Vitamin D intake can help to prevent osteoporosis and other bone diseases.
2. Immune system: Vitamin D is important for the proper function of the immune system, it helps to regulate the production of certain white blood cells that are important for fighting off infections.
3. Muscles function: Vitamin D plays a role in the function of muscles, it helps to regulate muscle strength and muscle mass, which is important for maintaining physical mobility and independence.
4. Cardiovascular health: Vitamin D may play a role in maintaining cardiovascular health by helping to regulate blood pressure and preventing calcification of the blood vessels
5. Mental health: Research has suggested that vitamin D may have a protective effect against depression and other mental health conditions.
6. Cancer prevention: Some studies have suggested that vitamin D may help to prevent certain types of cancer, such as colorectal and breast cancer.

Vitamin D is produced in the skin when it is exposed to sunlight. However, sun exposure is not always sufficient or possible to meet the body's needs, especially for people who live in areas with less sunlight, have darker skin, and spend most of their time indoors. Therefore, Vitamin D can also be obtained from dietary sources such as fatty fish, fish liver oil, egg yolks