Powerhouse nutrient: Vitamin E. Levels of this antioxidant, which wards off free radical damage linked to aging and keeps your immune system healthy, are three times higher in grass-fed beef than in conventional grain-fed beef.
More healthy bonuses: In addition to being slightly higher in protein, grass-fed beef is leaner. It contains half as much total fat as grain-fed beef and two-thirds less saturated fat than conventional grain-fed beef.
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Photo: Mitch Mandel/Rodale