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Find out which foods will help boost your immune system

StarsInsider Logo By iStock of StarsInsider | Slide 1 of 22: A cebola possui quercitina, uma substância que estimula as defesas do corpo e ajuda no combate as alergias.


Onions contain a lot of quercetin, a substance which helps strengthen the body's defenses, and also helps combat allergies.
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