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Articles February 2019 Issue

Vegetables: to Cook or Not to Cook

Cooking decreases content of some nutrients but increases availability of others.

Vegetables are an excellent source of vitamins, minerals, phytochemicals, and fiber, and health-conscious consumers naturally want to know how to get the most nutritional impact from these powerful foods. “Nutritionally, there are pluses and minuses to cooking vegetables,” says Helen Rasmussen, PhD, RD, a senior research dietitian at Tufts’ Jean Mayer USDA Human Nutrition Research Center on Aging. For example, cooking carrots reduces levels of vitamin C (which plays an important role in maintaining collagen, the glue that holds cells together) but increases availability of beta-carotene, a precursor of vitamin A (which plays an important role in vision, reproduction, bone growth, and regulating the immune system).

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