But it wasn't water-soluble, meaning it couldn't be absorbed by the body and would never be effective as a drug. 1  A drug candidate molecule must pass many hurdles to earn the description good medicine.. It must have the best possible activity, solubility, bioavailability, half-life, and metabolic profile.
Vitamin C, or ascorbic acid, may also help protect and strengthen joints by preventing free radical damage to cells. The vitamin also helps form the protein in tendons, ligaments and other tissues. You can get vitamin C in fruit -- especially oranges and grapefruits -- and many vegetables.Vitamin D, which is found in fatty fish, mushrooms, and fortified dairy products, is also made in your skin in the presence of sunlight.everal vitamins and minerals have been studied for their protective effects on the joints. They include copper, selenium and vitamins C and D.
An adequate calcium intake and adequate amounts of vitamin D are important foundations for maintaining bone density and strength. However, vitamin D and calcium alone are not sufficient treatment for osteoporosis and are given in conjunction with other treatments.Vitamin D is important in several respects:1  Vitamin D helps the absorption of calcium from the intestines. 2  A lack of vitamin D causes calcium-depleted bone (osteomalacia), which further weakens the bones and increases the risk of fractures.. An adequate calcium intake and adequate amounts of vitamin D are important foundations for maintaining bone density and strength. However, vitamin D and calcium alone are not sufficient treatment for osteoporosis and are given in conjunction with other treatments. Vitamin D is important in several respects: