The main function of vitamin D is to regulate the absorption of calcium and phosphorous in our bones and to aid in cell communication throughout the body. Frequent exposure of the skin to sunlight promotes sufficient vitamin D manufacturing without the need for supplements, however, since the industrial revolution and the rise of office jobs we do not get enough exposure via sunlight.
Why do we need vitamin D?
- Healthy bones: it is important for the absorption and metabolism of calcium and phosphorous.
- Immune system: It regulates the immune system and helps to fight infections such as the common cold.
- Reduces risk of multiple sclerosis: according to some studies MS is much less common nearer to the tropics (where there is more sunlight).
- Brain power: vitamin D plays a key role in a well-functioning and healthy brain.
- Weight maintenance: helps to maintain a healthy body weight.
- Reduces severity and frequency of asthma.
- Prevents arthritis: has been shown to reduce the risk of developing rheumatoid arthritis.
- Keeps you happy: vitamin D deficiency has been attributed to symptoms of depression.
Do you take a vitamin D supplement and if so, why?