3d image of vitamin d skeletal formula

vitamin fat-soluble secosteroids calciferols cholecalciferol calcium magnesium phosphate absorption ergocalciferol calcifediol calcium homeostasis ultraviolet irradiation analogues parathyroid hormone calcitonin deficiency bone resorption osteoclast formation rickets health osteomalacia osteoporosis skin pigmentation immune system inflammatory bowel disease diabetes dementia schizophrenia weight loss supplement biological activity bioactive nutrient prescription drug food additive nutraceutica dietary vitamin biomolecule molecule molecular formula skeletal structure 3d