While eating spinach won't cause your biceps to instantly inflate like Popeye's, the cartoonist's link between the vegetable and muscle building wasn't just a flight of fancy.
Spinach contains Factor CoQ10, a compound with genuine muscle-strengthening properties. While this can certainly support your skeletal muscles, scientists have found it especially beneficial for the heart. In fact, CoQ10 is already used in certain heart disease treatments.

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