. In terms of absorption effect, the most easily absorbed calcium is calcium citrate, followed by calcium lactate, calcium gluconate and finally calcium carbonate. However, in terms of content, calcium carbonate has a high calcium content, 40 mg per 100 mg, 23 mg per 100 mg per calcium acetate, and 0/3 mg per 100 mg per calcium lactate. The most important point of calcium supplementation is easy absorption. No matter how much calcium you take in, the small intestine can't absorb calcium without vitamin D. The content of magnesium in calcium tablets is also very important, which can increase bone density and prevent osteoporosis. Generally speaking, there are more calcium tablets containing vitamin D and less calcium tablets containing magnesium. Try to choose calcium tablets containing more magnesium, because vitamin D can be taken in other ways. Therefore, when choosing calcium tablets, we should not only watch advertisements, but also listen to the opinions of doctors or nutritionists and other professionals. They have a better understanding of the market situation of nutritional products, and can also provide more accurate suggestions according to your health, diet, work and other conditions to guide people to correctly supplement calcium. When is the best time to supplement calcium? Generally speaking, you can take calcium tablets to supplement calcium at any convenient time, which is not particularly strict. In addition, the best time to take calcium carbonate is half an hour after meals. After calcium supplementation, it is best to bask in the sun more to promote the production of vitamin D in the body and promote the absorption of calcium. It is not advisable to drink too much water after calcium supplementation to avoid diluting calcium. At the same time, we should be careful not to consume too much oxalic acid. Oxalic acid exists in vegetables, which will affect and prevent the absorption of calcium. When cooking, you can remove oxalic acid from vegetables by blanching them with water. Can I get enough calcium to ensure the health of my bones? Taking enough calcium is only an important part to prevent osteoporosis. To ensure the health of bones, it is necessary to do strength exercises such as jogging. In addition, cigarettes and alcohol are very harmful to the health of bones, so try not to smoke and drink in moderation. It is also very important for bone health to achieve dietary diversification and balanced intake of nutrients.