Choline has been used to treat fatty livers and Alzheimer's disease. Infants, however, may need choline and supplementation is recommended. Good sources of choline are lecithin, seed oils, liver and egg yolks. It promotes the body's absorption of calcium, which is essential for the normal development of healthy teeth and bones. It also helps maintain the adequate blood levels of calcium and phosphorus, which are minerals.
Cholecalciferol is found only in animals.
The active hormonal form of vitamin D is 1,25 dihydroxycholecalciferol. The primary purpose of vitamin D is to regulate plasma levels of Ca and P to support bone mineralization. A vitamin D deficiency primarily results in rickets in children and osteomalacia in adults. Eight forms are found in nature. Vitamin E is a natural antioxidant that helps prevent cellular damage.