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Nial Wheate, Professor, School of Natural Sciences, Macquarie University

Should I take vitamin C to ward off colds, lower blood pressure or reduce cancer risk?

Sean Anthony Eddy/Getty Images

Vitamin C is one of the most iconic nutrients in popular health culture, often credited with preventing colds, boosting immunity and even fighting serious diseases.

But while it’s essential for our bodies to function, its benefits are often misunderstood or overstated. Before you stock up on supplements, here’s what to consider.

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