What is a primary source of Vitamin D aside from sunlight?

Milk and fortified dairy products are indeed a primary source of Vitamin D, particularly in diets where sunlight exposure may be limited. Vitamin D is essential for calcium absorption and bone health, and while sunlight triggers the production of Vitamin D in the skin, dietary sources become critical, especially in areas with less sun exposure or for individuals who may not get enough sunlight due to lifestyle or health reasons.

Fortified milk and dairy products usually contain added Vitamin D to help individuals meet their daily requirements. This helps prevent deficiencies, which can lead to conditions like rickets in children and osteomalacia in adults. The fortification of dairy products is a widespread public health strategy to ensure adequate intake of this vital nutrient within populations.

Other food sources of Vitamin D, such as fatty fish, eggs, and fortified cereals, are also important, but milk and dairy serve as a significant source, particularly for those who consume these products regularly as part of their diet.