Diet composition and energy balance in humans

Inpatient metabolic studies of human subjects were performed to obtain data on important nutritional issues. It was shown that wide variations in the ratio of carbohydrate to fat do not alter total 24-h energy need. Studies of the fatty acid composition of plasma low-density lipoproteins during low-...

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Bibliographic Details
Published in:The American journal of clinical nutrition 1998-03, Vol.67 (3), p.551S-555S
Main Authors: Hirsch, J, Hudgins, LC, Leibel, RL, Rosenbaum, M
Format: Article
Language:English
Subjects:
ADIPOSE TISSUES
BAISSE DE POIDS
BALANCE DE ENERGIA
BILAN ENERGETIQUE
Biological and medical sciences
BODY WEIGHT
CARBOHIDRATOS
CARBOHYDRATES
CORPS GRAS
DIET
DIETA
Dietary Carbohydrates - administration & dosage
Dietary Carbohydrates - metabolism
Dietary Fats - administration & dosage
Dietary Fats - metabolism
ENERGIA
ENERGIE
ENERGY
ENERGY BALANCE
ENERGY EXPENDITURE
ENERGY METABOLISM
ENERGY REQUIREMENTS
FATS
GAIN DE POIDS
GANANCIA DE PESO
GLUCIDE
GRASAS
Humans
INGESTION DE NUTRIENTES
INGESTION DE SUBSTANCES NUTRITIVES
Medical sciences
Metabolic diseases
Metabolism
METABOLISME ENERGETIQUE
METABOLISMO ENERGETICO
NUTRIENT CONTENT
NUTRIENT INTAKE
Nutrition
NUTRITIVE VALUE
Obesity
Oils & fats
OVERWEIGHT
PESO CORPORAL
POIDS CORPOREL
RATIOS
REDUCCION DEL PESO
REGIME ALIMENTAIRE
SOBREPESO
SURPOIDS
TEJIDO ADIPOSO
TISSU ADIPEUX
VALEUR NUTRITIVE
VALOR NUTRITIVO
WEIGHT GAIN
WEIGHT REDUCTION
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Description
Summary:Inpatient metabolic studies of human subjects were performed to obtain data on important nutritional issues. It was shown that wide variations in the ratio of carbohydrate to fat do not alter total 24-h energy need. Studies of the fatty acid composition of plasma low-density lipoproteins during low-fat feeding indicated that there can be considerable lipogenesis from carbohydrate in humans during isoenergetic feeding. The energy cost of this conversion must be small or be counterbalanced by other changes in energy metabolism because measured energy need was unaltered by fat-to-carbohydrate ratios. Energy need was, however, markedly varied by changes in body weight. Subjects at their usual body weights who had experimentally induced increases in body weight became inefficient and required a higher energy intake for weight maintenance. The reverse occurred with a reduction in body weight. The set point at which energy storage is defended is clearly different in obese persons.
ISSN:0002-9165
1938-3207
DOI:10.1093/ajcn/67.3.551S