Allnutrition Vitamin D3 4000 Drops is a liquid dietary supplement designed for use as an addition to your daily diet. Vitamin D contributes to the proper functioning of the immune system and is naturally produced by the body when exposed to direct sunlight. However, UV exposure and the synthesis of vitamin D3 depend on many factors (season, age, skin color).

Vitamin D helps in the proper absorption of calcium and phosphorus, supports healthy bones and teeth, and has a positive effect on the proper functioning of muscles and the immune system.

Vitamin D is available in two forms: cholecalciferol (synthesized in the skin or derived from the diet) and ergocalciferol (produced from ergosterol found in fermented foods and mushrooms).