Depending on the degree of processing, many nutrients can be destroyed or removed. Peeling outer layers of fruits, vegetables, and whole grains may remove plant nutrients (phytochemicals) and fiber.Heating or drying foods can destroy certain vitamins and minerals.
What happens to nutrients during food processing?
Nearly every food preparation process reduces the amount of nutrients in food. In particular, processes that expose foods to high levels of heat, light, and/or oxygen cause the greatest nutrient loss. Nutrients can also be "washed out" of foods by fluids that are introduced during a cooking process.
What causes processed foods to lose some of their nutritional value?
Low in nutrients Ultra-processed foods are very low in essential nutrients, compared with whole or minimally processed foods. In some cases, manufacturers add synthetic vitamins and minerals to replace nutrients lost during processing.
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