1, calcium citrate is about 5 times higher than calcium in calcium carbonate, and the absorption rate of calcium carbonate is 5%-15%; The bioavailability of calcium citrate is better than that of calcium carbonate, and the elderly may have the problem of poor absorption of calcium carbonate.
2. The calcium content of calcium citrate tetrahydrate is 2 1%, which is nearly twice as low as that of calcium carbonate (40%). Therefore, if you want to consume the same weight of calcium, the amount of calcium citrate must be nearly twice that of calcium carbonate, and calcium citrate is more easily absorbed by the human body and less likely to cause stones; The absorption rate of calcium citrate in human body can be as high as 30%, which is considered as a product with high absorption rate.
3. Calcium carbonate products usually contain high calcium content, and the absorption rate of human body can reach 35%; The absorption rate of calcium citrate is 2.5 times that of calcium carbonate. Calcium citrate does not need gastric acid activation and absorption, but also can prevent urinary calculi and avoid absorption problems such as flatulence.
4. Calcium citrate is a calcium salt extracted from citric acid. Fruits and other plants are rich in natural citric acid, so the source of calcium citrate is relatively safe; Calcium citrate is soluble in water, and its PH value is close to neutral. When absorbed, it does not consume gastric acid, does not cause irritation to the stomach and intestines, and does not cause constipation and other symptoms.