Zinc Gluconate
The zinc salt used in most cold-duration lozenge trials, usually alongside zinc acetate. Trials deliver it as a lozenge dissolved in the mouth, not swallowed, which matters: the proposed action is local to the throat.
What it’s good for
Zinc Gluconate for Frequent Colds
Evidence1 study · 1 supporting · 0 against
1 safety note
Zinc is critical for both innate and adaptive immunity. It supports T-cell development, natural killer cell function, and neutrophil activity. Zinc ions also directly inhibit rhinovirus replication by blocking viral binding to ICAM-1 receptors.
Dose: 15–30 mg