What is a rich food source of Vitamin D?

Fatty fish is recognized as an excellent source of Vitamin D due to its high oil content, particularly in species such as salmon, mackerel, and sardines. These fish not only provide a significant amount of Vitamin D per serving but also offer beneficial omega-3 fatty acids, which aid in overall health.

Vitamin D is essential for maintaining healthy bones and teeth, supporting immune function, and facilitating normal cell growth and development. Foods rich in this vitamin help enhance the body’s absorption of calcium and phosphorus, both of which are crucial for bone mineralization.

In contrast to the other options, lean meats, fruits, and whole grains do not contain substantial amounts of Vitamin D. Lean meats may be a good source of protein and various B vitamins, fruits provide essential vitamins and fiber but are typically low in fat-soluble vitamins like D, and whole grains can offer some nutrients but generally lack adequate Vitamin D as well. Thus, fatty fish stands out as the most effective way to increase dietary intake of this essential nutrient.