Vitamin D is a hormone produced by sun exposure and obtained through diet. Found naturally in fatty fish, cod liver oil, cheese and fortified foods. Available in two forms: D2 (plant-derived) and D3 (animal-derived)
Vitamin D helps absorb calcium and protects bone health. Body produces vitamin D from sun exposure. Many Americans don't get enough from sunlight
Vitamin D is essential for bone health and immune function. Body produces vitamin D from sunlight exposure. FDA doesn't regulate supplements like prescription drugs. Recommended daily intake is 1,000-2,000 IUs for adults. Maximum safe daily intake is 4,000 IU
The integumentary system comprises skin, hair, nails, glands, and sensory nerves. The skin is the largest organ, covering the entire body from head to toes. The skin has two layers: epidermis and dermis, with a fatty layer beneath. Hair protects skin, regulates temperature, and aids in sensation. Nails provide protection and assist with touch sensation
Rainbow trout is a mild-flavored, flakey fish in the salmon family. Available in white, pink, or orange flesh. Can be prepared using various methods including baking, grilling, and frying
Vitamin D is an umbrella term for both D2 and D3 forms. Vitamin D3 is produced naturally in skin and found in animal foods. Vitamin D2 comes from mushrooms and fortified foods