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Protein

Protein. Protein. From Greek “protos” Major component in all animal and plant tissues Made up of hydrogen, oxygen, carbon and nitrogen. Chemical structure - Protein. Source: http://minimalpotential.files.wordpress.com/2007/11/3351.png. What exactly is protein?. Amino Acids

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Protein

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  1. Protein

  2. Protein • From Greek “protos” • Major component in all animal and plant tissues • Made up of hydrogen, oxygen, carbon and nitrogen

  3. Chemical structure - Protein • Source: http://minimalpotential.files.wordpress.com/2007/11/3351.png

  4. What exactly is protein? • Amino Acids • Building blocks for proteins • 20 amino acids • 11 can be made in the body • 9 are essential

  5. Protein’s Role • Enzymes • Facilitate and accelerate chemical reactions • Antibodies • Fight illness • Hemoglobin • Transport oxygen in the blood • Hormones • Regulate body functions

  6. Protein’s Role continued • Growth and maintenance • Help grow and repair body tissues • Add structure to body tissues

  7. Digestion & Absorption • Source: http://library.thinkquest.org/11226/image/digest.jpg

  8. Recommended amounts • 10-35% of intake should be protein • Males (18 + y/o): 59-63 grams/day • Females (18 + y/o): 44-50 grams/day • Calculation: • 0.8 gram/kilogram of body weight • Infants needs the most protein

  9. Food and protein • How do you get protein in your diet? • Animal products are the best source • Meat, eggs, milk, legumes, grains, vegetables

  10. Complete proteins • Supply all essential amino acids in the correct amount for the body to use. • Animal proteins are complete

  11. Complementary proteins • Plant proteins are incomplete • Exception: soybean protein • Vegetarians need to eat plant proteins in combination

  12. Too much protein? • It is possible to get too much. • Extra calories • Kidney strain • Mineral loss • Heart disease • Cancer

  13. Choosing proteins • What foods do you eat that contain protein? • Are there some that are better than others?

  14. Vegetarianism • What is vegetarianism? • Why become a vegetarian? • Scarcity of food • Religious beliefs • Concern for health or the environment • Concerns about animals

  15. Types of vegetarians • Semi-vegetarian • Pesco-vegetarian • Lacto-ovo-vegetarian • Lacto-vegetarian • Ovo-vegetarian • Vegan • Fruitarian

  16. Vegetarian Health Benefits • Lower risk of heart disease • Lower risk of cancer • Less likely to be overweight

  17. Vegetarian Health Risks • Not getting enough protein • Osteoporosis • Anemia • Choosing foods to eliminate health risks

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