Director / Editor: Victor Teboul, Ph.D.

Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

Should I take zinc or eat oysters to ward off colds, boost my immune system or improve fertility?

By Jack Janetzki, Lecturer in Pharmacy and Pharmacology, Adelaide University

The marketing hype promises better health for men, fewer colds and a more robust immune system. Here’s what the evidence says.

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