Nutritional Gallery

Balanced diet

Balanced diet, computer artwork. A balanced diet shown as segments of a pie. The pie shows what proportion of the diet should be made up of each of the major food groups. Carbohydrates (top left) should make up the biggest part of a healthy diet, followed by fruit and vegetables (top right), proteins (bottom left) and dairy products (bottom right). Fats and sugars (bottom centre) should make up the smallest constituent of a healthy diet

© DAVID NICHOLLS/SCIENCE PHOTO LIBRARY

Scallops C016/5812

Scallops on sale in a market. Scallops (family Pectinidae) are marine molluscs. They are a highly prized seafood delicacy, and their meat is a good source of protein and minerals. Photographed in Venice, Italy

© DR JUERG ALEAN/SCIENCE PHOTO LIBRARY

Animal, Biological, Biology, Delicacy, Dietary Source, Europe, European, Fauna, Food, Foods, Foodstuff, Foodstuffs, Fresh, Healthy, Italian, Italy, Marine, Marine Biology, Market, Minerals, Mollusc, Nature, Nutrition, Nutritional, Open, Opened, Pectinidae, Protein, Scallop, Scallops, Seafood, Shell, Shelled, Shellfish, Shells, Stall, Venetian, Venice, Wildlife, Zoological, Zoology

Red onion

Red onion. Top of a red onion (Allium cepa). The onion is a vegetable native to Asia, but it is now cultivated worldwide in temperate and subtropical regions. Onions can be eaten raw or cooked and are often used to add flavour to a variety of dishes. They contain a range of vitamins and minerals. Red onions are used by herbalists to treat skin conditions, high blood pressure and haemorrhoids

© VERONIQUE LEPLAT/SCIENCE PHOTO LIBRARY