Zinc Picolinate
Zinc Picolinate is a tier 2 form of Zinc, used in 599 on-market products and providing 21.1% elemental zinc by weight.
599
on-market products
tier 2
quality tier
21.1%
elemental fraction
Basis: Zn(C6H4NO2)2, anhydrous
Why this tier: Raised hair/urine/erythrocyte zinc more than citrate or gluconate in a small (n=15) crossover using indirect tissue markers; the popular "best absorbed" claim is more equivocal than commonly stated.
Source: Barrie SA et al. 1987, Agents Actions 21(1-2):223-228