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Carbohydrate: Fats
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Apart from genetic adaptation, climatic factors ... play an important role in carbohydrate metabolism in fish. Acclimation in fish, in essence, reflects enzyme acclimation, since the animal's ability to survive depends largely upon its ability to carry out normal metabolic functions. Some enzymes for metabolic acclimation show good compensation while others do not. The enzymes associated with energy liberation (enzymes of glycolysis, pentose shunt, tricarboxylic acid cycle, electron transport and fatty acid oxidation) exhibit temperature compensation whereas, those enzymes dealing largely with the degradation of metabolic products show poor or reverse compensation (see Table 1).
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William Yancy and his colleagues randomized 120 overweight volunteers to follow either the Atkins Diet or a low-fat, high-carbohydrate diet. The intervention for both groups included group meetings which took place at an outpatient clinic twice monthly for 3 months, then monthly for 3 months. The meetings typically lasted 1 hour and consisted of diet instruction, supportive counseling, questionnaires, and biomedical measurements.
While there is some evidence that a low carbohydrate diet may help people lose weight more quickly than a low fat diet (12, 13), no one knows the long-term effects of eating little or no carbohydrates. Equally worrisome is the inclusion of unhealthy fats in some of these diets.
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Healthcommunities.com As with fats, it is the type of carbohydrate that matters most. The best types of carbohydrates to choose are in whole, or unprocessed, foods such as fresh fruits, vegetables, and whole grains.
It could be due to the lower energy density of high carbohydrate diets, as carbohydrates have less calories weight for weight than fat. Fibre-rich foods ... tend to be bulky and physically filling.
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