Vitamin D is a fat-soluble vitamin most notably known for its protective effects on bones. Vitamin D has been used for building bone mass and preventing bone loss, protecting against muscle weakness and promoting strong teeth. It is also used for preventing rickets and postmenopausal osteoporosis. Interestingly, very few foods naturally contain Vitamin D. Some dietary sources include eggs from chickens that have been fed Vitamin D and fatty fish such as herring, mackerel, sardines and tuna. We acquire most of our Vitamin D from daily exposure to sunlight. Vitamin D is stored in body fat until utilized. It is effective in the prevention of bone and muscle related disorders, such as osteoporosis (reduction in bone mass), and osteomalacia (softening of the bones).Recommended Use: Helps in the absorption of phosphorus and calcium. Calcium intake, when combined with sufficient Vitamin D, a healthy diet and regular exercise may reduce the risk of developing osteoporosis. Helps to prevent Vitamin D deficiency.Directions: Adults, take two drops (0.065 ml) daily or as recommended by a healthcare practitioner.Medicinal Ingredients (per two drops/0.065 mL): Vitamin D3 (1000 I.U.) (cholecalciferol) ... 25 mcg Non-Medicinal Ingredients: Medium chain triglycerides (coconut and palm kernel oil).No added yeast, starch, wheat, soy, gluten, corn, sugar, dairy, artificial colors or preservatives.