Calcium ascorbate

Studies in people

• Benefit

  Immune cell activity²

  In healthy adults, 500 mg of calcium ascorbate may boost some immune benefits more than 500 mg of plain vitamin C.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.

Expert panels that weigh all the research. Shown for context: the signal at the top does not count them.

• UN and WHO food additive experts (JECFA), 1981

  No daily limit needed (“ADI not specified”, JECFA’s term for very low toxicity).