Lecture Slides Week1 1-5 Protein

7/27/2019 Lecture Slides Week1 1-5 Protein

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Focus on: Protein


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Nutrients: Energy Yielding or Not?!"#$%&'# )%&*+, -'&$./0

Yes NoMacronutrientsCarbohydrates 4 kcal/gramFats 9 kcal/gramProtein 4 kcal/gramMicronutrientsVitamins Minerals MiscellaneousWater Alcohol 7 kcal/gram


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Overview

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Roles of Protein in the BodyEnzymes: chemical reaction catalysts

Hormones, antibodies & transport proteins

Maintains fluid & electrolyte balance

Maintains acid-base balance

Grow, maintain & repair body tissues

Provide energy (4 kcal/g)

Can provide glucose via gluconeogenesis


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Amino Acids

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Amino Acids

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Essential vs. Non-Essential AAs

Essential Amino Acids

Histidine

IsoleucineLeucine

Lysine

Methionine

Phenylalanine

Threonine

Tryoptophan

Valine

Nonessential Amino Acids

Alanine

Asparagine

Aspartic acid

Glutamic acid

Conditional Amino Acids

Arginine Glycine

Cysteine Ornithine

Glutamine Proline

Tyrosine Serine


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Using Protein for Energyo K-%' >% )# '#$ +#'097% %'#9;- +1:#"&%0 $# 7%%$

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Using Protein for Energy

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Dietary Sources of Protein

Dairy: milk, yogurt, cheese

Animal flesh: poultry, fish, meat

Legumes, nuts, eggs

Grains usually incomplete proteins

Vegetables usually incomplete proteins

Soy is the only non-animal complete protein

Quinoa, buckwheat, hempseed, amaranth also completeproteins but not 1.0 on the Protein Digestibility Corrected Amino

Acid Score (PDCAAS) scale


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Animal Sources of Protein

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Plant Sources of Protein

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Recommended Serving Sizes

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Determining Protein Needs

Acceptable Macronutrient Distribution Range for Protein

10-35% total kcal intake should be from protein

Average Intake in United States

12-18% of calories from protein

4-JKA =:K=L-


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Determining Protein NeedsAge Recommended Dietary Allowance (RDA), Protein (g/kg)

0-6 months 1.52*

7-12 months 1.5

1-3 years 1.14-8 years 0.95

9-13 years 0.95

14-18 years 0.85

Adults 18+, non-pregnant 0.8

Pregnant women 1.1Lactating women 1.3


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Other Protein Recommendations

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Other Protein Recommendations

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Application: Protein Needs

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Application: Solution

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What does 63g protein look like?

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What does W pro intake look like?

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Research: Protein Perceptions

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Research: Protein & Satiety2QM2 0$9), E, h"%'+- "%0%1"+-%"0 &' W%:: 5"#=%) 01@%$,G

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Research: Protein Intake & Health

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Research: Protein Intake & Health

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For More Informationo i%):&'%!:908 !"#$%&'G

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Lecture Slides Week1 1-5 Protein

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