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Protein.

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Presentation on theme: "Protein."— Presentation transcript:

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:

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 Antibodies Hemoglobin Hormones
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:

8 Recommended amounts 10-35% of intake should be protein
Males (18 + y/o): grams/day Females (18 + y/o): 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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