On Mon, 20 Feb 2006 12:49:35 -0800, GaryG wrote in
<news
[email protected]> on
sci.med.nutrition,alt.support.diet.low-carb :
> Well, I'm agnostic on the issue of low-carb. From what I've read, it can be
> a good diet strategy for some folks. Not because it allows your body to
> violate the laws of thermodynamics, but because it allows for "satiety". By
> feeling "satisifed" one eats less...less *calories*. I think this can be a
> prticularly effective strategy if : a) one's "problem foods" are carbs
> (e.g., bread, rice, etc.), and b) one is not engaged in endurance sports.
You hit the nail on the head. Satiety is key.
High-protein foods, for instance, are generally satiating, while food
and drinks containing added sugar are not.
But then, not all "low carb" meals are very satiating.
And some "high carb" foods can be quite satiating, especially when
they also are rich in fiber.
http://www.ncbi.nlm.nih.gov/entrez/...uids=10435117&query_hl=16&itool=pubmed_docsum
Int J Food Sci Nutr. 1999 Jan;50(1):13-28. Related Articles, Links
The effects of high-carbohydrate vs high-fat breakfasts on
feelings of fullness and alertness, and subsequent food intake.
Holt SH, Delargy HJ, Lawton CL, Blundell JE.
Human Nutrition Unit, University of Sydney, NSW, Australia.
Fourteen subjects consumed four realistic isoenergetic (2035 kJ)
breakfasts, varying in macronutrient content (two fat-rich, two
carbohydrate-rich (low- and high-fibre)), in random order on separate
mornings. After breakfast, subjects left the laboratory and completed
appetite and alertness ratings at specific times and recorded all
subsequent fluid and food intake for the rest of the day. The
high-fibre, carbohydrate-rich breakfast was the least palatable but
most filling meal and was associated with less food intake during the
morning and at lunch. Hunger returned at a slower rate after this meal
than after the low-fibre, carbohydrate-rich meal. Both fat-rich
breakfasts were more palatable but less satiating than the
carbohydrate-rich meals and were followed by greater food intake
during the morning, which may be a compensatory response to ingest a
sufficient amount of food and/or carbohydrate to match the level of
fullness produced by the subjects' habitual breakfasts. By the end of
the day, the average total energy intake was significantly greater
after the fat-rich EB meal than after the high-fibre,
carbohydrate-rich meal (P < 0.05). Total day fat intakes were also
significantly greater when the high-fat breakfasts were eaten. For
every individual test, alertness ratings increased immediately after
breakfast was consumed. On average, the high-fibre carbohydrate-rich
meal was associated with the highest post-breakfast alertness ratings
and with the greatest cumulative amount of alertness during the period
between breakfast and lunch (AUC). Alertness AUC values up until lunch
correlated positively with fullness AUC values (r = 0.36, P < 0.01, n
= 56). The results confirm the relatively weak satiating power of
fat-rich meals observed in controlled laboratory-based studies and
indicate that a high-fibre, carbohydrate-rich breakfast may assist
weight control efforts by maintaining fullness. Further research is
required to determine whether satiety directly enhances alertness and
whether low-GI carbohydrate-rich meals enhance alertness to a greater
degree than high-GI meals.
Publication Types:
* Clinical Trial
* Randomized Controlled Trial
PMID: 10435117 [PubMed - indexed for MEDLINE]
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