Nature Aid Vitamin D3 5000 IU is a premium strength dietary supplement containing 60 tablets. Each tablet provides 5000 IU (125μg) of vitamin D3, supporting immune health, bone strength, and muscle function. This supplement helps maintain optimal vitamin D levels, especially for those with limited sun exposure. This supplement comes in a dark green bottle to protect the vitamin D3 from light degradation. The formula is designed to help with calcium absorption and utilization in the body, which is essential for maintaining healthy bones and teeth. Vitamin D3 (cholecalciferol) is the same form of vitamin D that is naturally produced by the body when skin is exposed to sunlight, making it highly bioavailable.