Fun, Healthy, Delicious Recipes
About 10 % of the vitamin K absorbed each day comes from bacterial synthesis in the colon. The remainder comes from dietary sources. Although the vitamin K contents of individual foods varies, green leafy vegetables (e.g., kale, turnip greens, parsley, salad greens, cabbage, and spinach),…
Most scientists classify vitamin D as a vitamin. However, in the presence of sunlight, skin cells can synthesize a sufficient supply of vitamin D from a derivate of cholesterol. Because a dietary source is not required if synthesis is adequate to meet the needs, the vitamin is more correctly classified as a “conditional” vitamin, or prohormone (a precursor or an active hormone). In the absence of UV light exposure, an adequate dietary intake of vitamin D is essential to prevent the deficiency diseases rickets and osteomalacia and to provide for cellular needs….
