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Across 1. an essential nutrient that is the body's main source of energy 4. the amount of energy used for automatic body functions such as breathing 5. a nutrient that supplies energy and carries certain vitamins in the body 8. nutrients that don't provide energy or body tissue, but help regulate these 10. a tool for identifying apporpiate weight that looks at weight in relation to height 12. a small portion of food usually served at the start of a meal 13. a special protein that helps chemical reactions happen 14. the many small units that makes a protein 15. a severe shortage of a nutrient which can cause illness 16. the chemicals found in food that nourish your body 17. serious health problems caused by a lack of nutrients over a long period of time 18. the study of nutrients in food and how they are used by your body

Down 1. carbohydrates made of many sugars attached together 2. a natural sugar found in milk and milk products 3. a way of training and eating several days before an athletic event 6. nutrients reference amounts shown on the nutrition panel of food labels 7. a process in which substances become new and different substance 9. a substance that helps to protect your body from cell damage that can lead to health problems 11. addind a nurient that is'nt naturally present to make a food more nutritious