Calcium is most easily absorbed at night, so you usually eat calcium tablets after dinner. Eating calcium tablets does not mean that calcium is absorbed, because sodium in the body is the chief culprit of calcium loss, so it is enough to eat salt (sodium chloride) in moderation, 5 grams per day, and people with heavy tastes should pay attention! In addition, magnesium promotes the absorption of calcium. It is useless to supplement calcium without magnesium. There are many foods containing magnesium, such as meat, seafood and vegetables. Generally speaking, it is better to do exercise between 4 pm and 7 pm instead of "going to bed early and getting up early to do exercise". In addition, properly bask in the sun.

Again, don't forget to drink plenty of water to supplement calcium.