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Difference between calcium citrate and calcium carbonate
The differences between calcium citrate and calcium carbonate include different chemical compositions, different calcium content, different absorbability, different适用人群, and different side effects.
The differences between calcium citrate and calcium carbonate include different chemical compositions, different calcium content, different absorption, different suitable populations, different side effects, and so on.
1. Different chemical compositions: Calcium citrate is an organic calcium salt composed of citric acid and calcium. Its chemical name is calcium 2-hydroxypropane-1,2,3-tricarboxylate tetrahydrate. Calcium carbonate is an inorganic calcium salt composed of carbonate ions and calcium ions. Its chemical name is calcium carbonate.
2. Different calcium content: Calcium citrate has a relatively low calcium content, generally around 21%. Calcium carbonate has a higher calcium content, approximately 40%.
3. Different absorption: Calcium citrate has better absorption and does not require stomach acid, so it can be taken on an empty stomach or at any time. It has higher solubility in the intestines and is easily absorbed and utilized by the body. The absorption of calcium carbonate requires the involvement of stomach acid, so it is recommended to take it after meals. If stomach acid secretion is insufficient, the absorption of calcium carbonate will be affected.
4. Different suitable populations: Calcium citrate is suitable for people with less stomach acid secretion, such as the elderly, people with indigestion, and those taking stomach acid-suppressing medications. It is also suitable for people with a higher risk of kidney stones or hypercalcemia, as calcium citrate can reduce oxalate absorption, thereby lowering the risk of kidney stone formation. Calcium carbonate is suitable for people with normal stomach acid secretion. For those who need to supplement a large amount of calcium, such as pregnant women, adolescents, and osteoporosis patients, calcium carbonate may be a better choice.
5. Different side effects: Calcium citrate has relatively few side effects and generally does not cause gastrointestinal discomfort, but excessive intake may lead to constipation. Calcium carbonate may cause gastrointestinal discomfort, such as bloating, stomach pain, and constipation. Long-term, high-dose use of calcium carbonate may also increase the risk of kidney stone formation.
It should be noted that their prices are also different. Calcium citrate is relatively more expensive due to higher production costs. Calcium carbonate is relatively less expensive due to lower production costs.
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