07/10/2021
The correct answer to this question is.......
D
Ghrelin is a hormone produced in your stomach and pancreas that is associated with stimulating hunger
It is termed the 'hunger hormone' because it stimulates appetite by signaling your brain to drive you to eat
Ghrelin levels are elevated before meals (when you’re most hungry) and suppressed after meals (when you’re no longer hungry)
If ghrelin levels are high, a ravenous monster emerges! If they’re low, you’ll not feel as hungry
Researchers from Beirut conducted a study to investigate the response of ghrelin after feeding meals of various macronutrient composition in healthy males [PMID = 16508254]
All subjects received, on separate occasions, a high-carbohydrate, a high-fat, and a high-protein meal. Blood samples (for the purpose of measuring ghrelin levels) were collected before and 15, 30, 60, 120, and 180 minutes following the ingestion of each meal
While ghrelin levels were suppressed after each of the meals, it was significantly lower 3 hours following the high protein meal as compared to the high carbohydrate and high fat meals
In fact, it was 50% lower after the protein meal as compared to the high-carbohydrate meal and 35% lower as compared to the high-fat meal
What this means is that the high-protein meal was satiating for a longer duration than a high carbohydrate and high fat meal (according to an objective hormonal measure of hunger)
A practical application to take from this study is to make sure that each meal that you ingest contains a source of high-quality protein
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