Calcium Ascorbate
Calcium Ascorbate is a tier 2 form of Vitamin C, used in 1,137 on-market products .
1,137
on-market products
tier 2
quality tier
n/a
elemental fraction
Why this tier: Not shown more bioavailable than plain ascorbic acid; its advantage is reduced GI/acid irritation, and it delivers less elemental vitamin C per mg of ingredient mass due to the bound mineral.
Source: Johnston CS, Luo B. 1994, PMID 8021423