Helps in the absorption and use of calcium and phosphorusVitamin D is best known for its role in aiding with calcium absorption from the digestive system and promoting bone formation. However, it has many other actions including balancing immune function and supporting mood. Vitamin D is synthesized by the skin following exposure to ultraviolet rays from sunlight, but many people do not spend enough time outdoors and become deficient in this essential vitamin. Vitamin D deficiency has been linked to numerous health conditions including osteoporosis, rickets, autoimmune conditions, diabetes, cancer, SAD (seasonal affective disorder), chronic pain and frequent infections.There is an obvious need to supplement with extra vitamin D especially in the elderly and children, during the winter, and for people with chronic diseases. Vitamin D3 is the most effective form of supplemental vitamin D (compared to vitamin D2, a less absorbable form). AOR’s Vitamin D3 is sustainably sourced from organic Lichen, making this a vegan-friendly formula. It is suspended in a medium chain triglyceride solution for maximal absorption and has a neutral flavour, making it effortless to take.AOR AdvantageAOR’s Vitamin D3 Liquid comes in two adult sizes and a child size with a calibrated dropper for accurate dosing. Up to 1000 IU is considered safe for people of all ages from infants to seniors. Talk to your healthcare provider about taking higher doses.  Serving Size: 0.2 ml Vitamin D3 (Cholecalciferol) 1000 IU/25 mcg Non-medicinal Ingredients: Medium chain triglycerides and olive oil Adult Dosage Take six drops (0.2 mL) daily with food, or as directed by a qualified health care practitioner.