Vitamin d is sometimes called the “sunshine vitamin” because it’s produced in your skin in response to sunlight. it’s a fat-soluble vitamin in a family of compounds that includes vitamins d-1, d-2, and d-3. your body produces vitamin d naturally when it’s directly exposed to sunlight. you can also get it through certain foods and supplements to ensure adequate levels of the vitamin in your blood. vitamin d has several important functions. perhaps the most vital are regulating the absorption of calcium and phosphorus, and facilitating normal immune system function. supports bone health** supports immune health** tasty fruit flavored gummies