Nutrition Puzzle

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Across
  1. 2. Necessary nutrient composed of amino acids
  2. 6. Neutral compound like sugar, starches or cellulose; major class of animal food
  3. 7. Measurement of heat energy provided by quantity of food
  4. 8. Something added to complete a thing, supply a deficiency
Down
  1. 1. Maintenance and improvement of health through exercise and proper diet
  2. 3. The study or Science of dietary requirement for proper health and development
  3. 4. Fatty substance found in foodstuffs or formed by body itself that coats and restricts arteries
  4. 5. Basic rate at which the body expends energy to maintain itself in resting state