Vitamin D3 2000 IU by Doctor's Best is an excellent dietary supplement in softgel capsules containing vitamin D3.

Vitamin D3 provides cholecalciferol, the natural form of vitamin D, which is required by the body to regulate phosphorus and calcium levels for healthy bones, teeth, and heart.

Vitamin D3 is produced in the skin by absorbing UV rays from the sun and is obtained from food in limited quantities.

Sun protection and climatic factors can affect low levels of vitamin D3. It is beneficial for:

• The immune system
• The cardiovascular system
• Bone density and structure
• Cellular function

It plays a role in most organs and systems of the body and affects the chemical messengers of the immune system. It supports healthy bone density and structure, as required for optimal calcium absorption.