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Vitamin C may help obese individuals metabolize fat during exercise
Vitamin C may help obese individuals metabolize fat during exercise -- Posted by Sweet Zombie Jesus! on 06-03-05 09:46
America is experiencing a major obesity epidemic. The ramifications of
this epidemic are immense since obesity is associated with chronic
metabolic abnormalities such as insulin resistance, dyslipidemia, and
heart disease. Reduced physical activity and/or increased energy
intakes are important factors in this epidemic. Additionally, a genetic
susceptibility to obesity is associated with gene polymorphisms
affecting biochemical pathways that regulate fat oxidation, energy
expenditure, or energy intake. However, these pathways are also
impacted by specific foods and nutrients.
Vitamin C status is inversely related to body mass. Individuals with
adequate vitamin C status oxidize 30% more fat during a moderate
exercise bout than individuals with low vitamin C status; thus, vitamin
C depleted individuals may be more resistant to fat mass loss.
Food choices can impact post-meal satiety and hunger. High-protein
foods promote postprandial thermogenesis and greater satiety as
compared to high-carbohydrate, low-fat foods; thus, diet regimens high
in protein foods may improve diet compliance and diet effectiveness.
Vinegar and peanut ingestion can also reduce the glycemic effect of a
meal, a phenomenon that has been related to satiety and reduced food
consumption. Thus, the effectiveness of regular exercise and a prudent
diet for weight loss may be enhanced by attention to specific diet
details.
J Am Coll Nutr. 2005 Jun;24(3):158-65. Strategies for healthy weight
loss: from vitamin C to the glycemic response.Johnston CS.
Department of Nutrition, Arizona State University East, 7001 E.
Williams Field Rd., Mesa, AZ 85212. carol.johnston@asu.edu.
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