Explain More About DASH Diet Flashcards

Covers chapters 7-12 in The Science of Nutrition textbook with emphasis on metabolism, DASH diet, and other useful bits of information.

32 cards   |   Total Attempts: 188
  

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Cards In This Set

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What does DASH stand for?
Dietary Approaches to Stop Hypertension.
What does the DASH diet emphasize?
Increased potassium, magnesium, and calicum intake with reduced sodium intake.
Historically what type of diet did Americans eat and how did this affect rates of hypertension?
Historically people ate low sodium and high potassium diets which lowered rates of hypertension. Most Americans now eat diets high in sodium and low in potassium.
Where does the sodium in our diet come from?
Food processing accounts for 75% of the salt in our diet, whereas natural sources and cooking account for just 10% and 15%.
How many serving of fruits, vegetables, whole grains, milk, meat and legumes does the DASH diet recommend?
7-8 whole grains, 2-3 dairy, 4-5 veggie, 4-5 fruit, 4-5 legumes weekly, and less than 2 meat a week.Result: Within 2 weeks lower blood pressure.
All dietary carbohydrate, fat, and protein can break down to what common compound?
Acetyl CoA, which can enter the TCA cycle,
Acetyl CoA only enters the TCA cycle when?
When the cell needs more energy.
Most ATP (energy) is produced in which part of the energy pathway?
The electron transport chain or ETC.
Why does dietary fat provide more energy than carbohydrates or proteins?
Because it provides more hydrogen. The more hydrogen, the more ATP produced.
If eaten in excess carbohydrates, fat, protein will produce and/or increase what two things?
It will produce triglycerides stored as adipose tissue and/or increase cholesterol levels.
What is the name of the metabolic pathway that converts glucose to pyruvate and where does it occur?
Glycolysis occurs anearobically (without air) in the cytoplasm of the cell.
During times when oxygen is unavailable pyruvate is converted to what via what metabolic pathway?
Pyruvate is converted to lactic acid via the Cori Cycle. It accumulates in the muscles due to limited clearance of Co2.
If oxygen is available what compound is pyruvate converted to and via what pathway?
Pyruvate is aerobically converted to acetyl CoA which the Tricarboxylic Acid (TCA) Cycle which occurs in the mitochondria.
Pyruvate can convert to what compounds and acetyl CoA can't convert to what compounds?
Pyruvate can convert to glucose or acetyl CoA, but Acetyl CoA can't convert to glucose or pyruvate.
The TCA cycle produces what?
Water, carbon dioxide, ATP, H2O, and provides hydrogen atoms for the ETC.