Turmeric is heralded for its anti-cancer and anti-inflammatory properties, but columnist Alice Klein finds that the evidence for this is shaky. Taking high doses of its curcumin extract in supplement form can be risky
Bharat Aggarwal's research on curcumin's cancer benefits—backing $275M in US studies—is discredited: 30 papers retracted, curcumin unstable and poorly absorbed. Concentrated supplements are now the leading herbal cause of liver injury in the US.
Columnist and
Health
Turmeric is heralded for its anti-cancer and anti-inflammatory properties, but columnist Alice Klein finds that the evidence for this is shaky. Taking high doses of its curcumin extract in supplement form can be risky
By Alice Klein
1 June 2026
Turmeric, a vibrant yellow spice, is famous for its anti-inflammatory benefits, thanks to curcumin, its active compound
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