Zinc Gluconate
Zinc Gluconate is a tier 2 form of Zinc, used in 1,297 on-market products and providing 14.3% elemental zinc by weight.
1,297
on-market products
tier 2
quality tier
14.3%
elemental fraction
Basis: Zn(C6H11O7)2, anhydrous (standard commercial/USP form)
Why this tier: Absorption 60.9%, statistically comparable to citrate, both significantly better than oxide.
Source: Wegmuller R et al. 2014, PMID 24259556