The foods that we eat can help or harm our bodies. Our bodies need nutrients such as salt and carbohydrates to survive. But too much or too little can have consequences. We also feed our bodies unecessary things, like caffeine. These substances can have benefits, but they can also do harm. In Nutrition and Your Body, learn about how different nutrients interact with the body. Discover how the body digests them, the changes they cause in the body and the various effects they have on us. Most people around the world enjoy caffeine. This drug helps people feel awake. It can have some benefits, but it also has risks. Carbohydrates give the body energy. They are in many foods people eat each day. But some carbohydrates are healthier than others. Your Body on Carbohydrates uncovers the nutritional benefits of carbohydrates, how they interact with the body and how to include them as part of a balanced diet. Easy-to-read text, vivid images and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources and an index. AGES: 8 to 11