Iron and zinc

Iron is important to red blood cells. Dried beans and peas, lentils, enriched cereals, whole-grain products, dark leafy green vegetables, and dried fruit are sources of iron. But the body doesn't absorb iron from plant sources as easily as animal sources. So the recommended intake of iron for vegetarians is almost double that recommended for nonvegetarians. To help your body absorb iron from plants, eat foods rich in vitamin C at the same time as you're eating iron-containing foods. Vitamin C-rich foods include peppers, strawberries, citrus fruits, tomatoes, cabbage and broccoli.

Like iron, zinc is not as easily absorbed from plant sources as it is from animal products. Fish, including crab and shrimp, are sources of zinc for pescatarians. Cheese and yogurt are sources of zinc if you eat dairy products. Plant sources include whole grains, soy products, lentils, beans, nuts and wheat germ. Zinc helps the body make proteins and grow cells. Research on zinc in the diet has found that it supports the immune system and vision, specifically.