Adequate intake of calcium and vitamin D is an economical and safe way to reduce the risk of fracture in osteoporosis. Many randomized controlled studies have shown that even and supplementation with vitamin D and calcium can reduce the risk of fracture in osteoporosis. Adequate dietary intake of calcium is necessary to establish peak bone mass and maintain bone health. When the body does not consume enough calcium, bone calcium is mobilized. That is why the National Osteoporosis Foundation recommends a daily calcium intake of 1,000 mg for men aged 50-70 years and 1,200 mg for women older than 51 years and men older than 71 years. greater than 1,200 mg to 1,500 mg has no additional benefit but rather increases the risk of kidney stones, cardiovascular disease and stroke. The average daily diet is 600-700 mg of calcium per day, so for most people over 50 years of age, additional calcium supplements such as calcium carbonate and calcium amino acid chelate are needed. Vitamin D plays an important role in calcium absorption, bone health, and reducing the risk of fracture. The National Osteoporosis Foundation recommends a daily intake of 800-1000 IU of vitamin D for people older than 50 years of age. milk, cereals, sea fish, and liver are the main sources of vitamin D in the diet. Some supplements such as calcium tablets and multivitamins also contain some vitamin D. However, for people with vitamin D deficiency, more supplementation is needed until serum vitamin D levels reach 75 nmol/l. Proper sun exposure is also beneficial for vitamin D synthesis.