The 14 Healthiest Vegetables in the World

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Spinach

With only 23 calories per 3.5 oz (100 g), spinach is rich in antioxidants and fiber, which boosts digestive health and fights oxidative stress in the body. This helps to prevent accelerated aging and the onset of chronic diseases, specifically prostate and breast cancer, according to several human studies. Rich in vitamins and minerals, including vitamin A, vitamin C, iron and calcium, its benefits also extend to your eye, skin, and immune health.