Calcium citrate powder for dietary supplements is a highly bioavailable form of calcium made by combining calcium carbonate with citric acid. Unlike calcium carbonate, it does not require stomach acid to be absorbed, making it a preferred choice for people with low stomach acid or those taking acid-reducing medications.
Why choose calcium citrate powder over other calcium forms?
Calcium citrate offers superior absorption compared to calcium carbonate, especially when taken without food. It is also gentler on the digestive system and less likely to cause constipation. For supplement manufacturers, the powder form allows flexible dosing and easy blending into capsules, tablets, or drink mixes.
How do you choose a reliable calcium supplier or manufacturer?
When sourcing calcium citrate powder, look for a calcium manufacturer that follows Good Manufacturing Practices (GMP) and provides a Certificate of Analysis (COA) for each batch. A reputable calcium supplier will also offer consistent particle size, low heavy metal levels, and full traceability. Many buyers turn to established producers in Asia, such as those in the china calcium salts sector, known for large-scale production and competitive pricing.
What specifications matter for supplement-grade calcium citrate?
Key specs include assay purity (typically 97–100%), moisture content, and mesh size. The powder should be white, odorless, and free-flowing. Ensure it is tested for lead, arsenic, and other contaminants to meet USP or FCC standards. These factors directly affect capsule fill weight and shelf life.
How is calcium citrate powder used in supplements?
It is commonly used in tablets, capsules, and effervescent powders. Typical elemental calcium doses range from 200 to 500 mg per serving. Because it is less dependent on stomach acid, it can be taken with or without food, offering formulators greater flexibility.
常见问题
Is calcium citrate powder better than calcium carbonate?
Calcium citrate is more bioavailable and does not require stomach acid for absorption, making it a better choice for older adults or those on acid reducers. However, it contains less elemental calcium by weight, so higher doses may be needed.
How should I store calcium citrate powder?
Store it in a cool, dry place away from direct sunlight, ideally in an airtight container. Proper storage prevents moisture absorption and maintains potency for up to two years.
What should I look for in a calcium citrate supplier?
Choose a supplier that provides a Certificate of Analysis, follows GMP, and offers consistent quality. Verify heavy metal testing and particle size specifications to ensure it meets your supplement needs.
