MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
High-protein foods. Assortment of foods with a high protein content. Clockwise from lower right these are: cheese (red leicester), fish (herring), red meat (beef), eggs, baked beans (haricot bean), red lentils, milk (whole cow's milk) and poultry (chicken). Protein is an essential part of the diet, making up a large part of the structure of the body.
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