September 3, 2026

Doctors Reveal That Eating Onion Causes… (7 Powerful Effects You Should Know)

What Onions Help With (Backed by Science)

1. Cancer Prevention

Quercetin and fisetin inhibit tumor growth and reduce oxidative DNA damage.

Strongly linked to lower risk of stomach and colorectal cancers (per World Cancer Research Fund).

Eating onions 2–3x/week may reduce gastric cancer risk by up to 50%.

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