Spinach is the source of Popeye's muscular prowess – upon eating it, his biceps immediately swell to three times their normal size. Segar chose the vegetable due to an 1870 German study which claimed it contained the same amount of iron as red meat.Darned decimal points, always screwing up good myths.
The strength-giving properties of spinach were later revised however, after it was found a stray decimal point had led researchers to believe the vegetable contained ten times its actual iron content.
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