Lecture 6 Flashcards
(7 cards)
What is the difference between total amino acid score and chemical score?
Total amino acid score: calculate ratio of all essential AAs in a gram of test protein, then compare to that in a g of standard
Chemical score: a measure of the nutritional value of a protein. The limiting essential AA in the test protein is expressed as the percentage of the amount of the same amino acid present in egg albumin, a high quality protein
What are the strengths and drawbacks of meat and vegetable proteins as dietary AA source?
Protein quality- Animal sources best
Most single plant sources are incomplete
What are the results of the Chicago Western Electric study?
Obesity OR less in Vegetable protein intake than in Animal protein intake
What are the effects of red meat consumption on type 2 diabetes and overall mortality?
Diets high in red meat resulted in a higher risk of type 2 diabetes.
Approx. 30% increase risk of death from heart attack and cancer when comparing people who ate most red meat v.s. least
Most at risk: Women CVD: 50% increased risk
What are the possible underlying contributors to health differences between red meat and plant proteins?
Meat: higher in saturated fats
Processing chemicals: endotoxins, carcinogens, pro-inflammatory compounds
More prone to increase IGF-1
Plants: absence of above, and addition of beneficial phytochemical
What is gluten?
A general name for a group of proteins found in wheat, rye and triticale. Helps foods maintain shape, acting as a glue that holds food together.
What is Celiac Disease? What is NCGS?
Celiac disease- a serious autoimmune disease that occurs in genetically predisposed people where the ingestion of gluten leads to damage in the SI.
NCGS: Non-coeliac gluten sensitivity; people who are gluten sensitive
