AOR Vitamin D3 - 2500 IU - Vitamin D helps the body regulate calcium levels in the blood, bones and tissues, aiding proper calcium and phosphorus absorption to promote bone growth and remodeling. This essential nutrient supports immune system health, helps heart function, reduces inflammation and abnormal cellular growth & differentiation, and improves mood. The skin synthesizes Vitamin D after exposure to UV rays from sunlight. However, many people lack sufficient amounts due to limited sunlight exposure, especially during winter in the northern hemisphere. Deficiencies in Vitamin D are associated with numerous health conditions including osteoporosis, rickets, autoimmune conditions, diabetes, cancer, SAD (seasonal affective disorder), chronic pain and frequent infections. Those who likely need to supplement with extra vitamin D include the elderly, northern hemisphere residents in winter and people with chronic diseases. AOR Vitamin D3 is sustainably sourced from organic lichen and not from the commonly used lanolin derived from sheep’s wool.