Whether calcium tablets should be taken with food depends on their composition.
If the calcium supplement contains calcium carbonate, it should be taken with food because the stomach acid secreted during meals increases the absorption of calcium carbonate. If the calcium supplement contains calcium citrate, it can be taken with or without food.
It is worth noting that when the amount of calcium taken at one time exceeds 500 mg, the efficiency of calcium absorption by the body decreases. Therefore, if you need to take 1000 mg of calcium daily, it is best to divide it into two or more doses.