What Is Vitamin D3 Good for?

Exposure to ultraviolet light supports vitamin D3 levels.

Vitamin D3 is a chemical synthesized in skin when we are exposed to ultraviolet light, and has a wide range of beneficial health properties. Without adequate levels of vitamin D3, we are more at risk of mineral deficiencies, bone deformities, poor immune function and depression.

Mineral Metabolism

Vitamin D3 is required for strong and healthy bones.

Adequate vitamin D3 levels are required by the body for the proper absorption and utilization of minerals such as calcium and phosphorous, which are important for the health of bones. Low levels of vitamin D3 may cause an increased risk of bone disease such as osteoporosis and rickets.

Immune Activity

Vitamin D3 may help the immune system fight infection.

Cells of the immune system, such as macrophages, which hunt the body for dangerous pathogens such as viruses, bacteria and cancer cells, have receptor sites for vitamin D3. As such, vitamin D3 may play a role in stimulating these cells to be more active in their hunt for disease-causing microbes.

Mood Balance

Low levels of vitamin D3 may be a factor in depression.

Vitamin D3 is required to maintain the balance and function of the parathyroid gland, which secretes hormones that, in very high levels, may cause depression. Low vitamin D3 levels may cause depression in some individuals.

Cardiovascular Health

Hypertension may be prevented by vitamin D3.

Vitamin D3 is required to prevent hypertension and maintain a balanced blood pressure. People suffering from hypertension are more likely to suffer from other cardiovascular conditions such as heart attacks and strokes.

References

• The Mayo Clinic: Vitamin D: Evidence
• The World's Healthiest Foods: Vitamin D
• Science Daily: Low Blood Levels Of Vitamin D May Be Associated With Depression In Older Adults