The vitamin primarily obtained from the sun is Vitamin D. Our body produces this essential vitamin when the skin is exposed to sunlight, specifically ultraviolet B (UVB) rays. Vitamin D plays a crucial role in calcium absorption, bone health, and immune function. While it can also be obtained through certain foods—such as fatty fish, fortified dairy products, and egg yolks—sun exposure remains the most efficient source. Considering factors like geographical location, skin pigmentation, and sunscreen use can affect the body’s ability to produce Vitamin D. Hence, adequate sunlight exposure is vital for maintaining optimal health.