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Short-term energy balance in patients with infections: carbohydrate-based versus fat-based diets. 1992

B Schneeweiss, and W Graninger, and P Ferenci, and W Druml, and K Ratheiser, and G Steger, and G Grimm, and B Schurz, and A N Laggner, and Siostrzonek
First Department of Medicine, University of Vienna, Austria.

The effects of a carbohydrate-based diet (50% carbohydrate calories, 30% fat calories, 20% protein calories) versus a fat-based diet (28% carbohydrate calories, 55% fat calories, 17% protein calories) on oxidation rates of carbohydrate, fat, and protein were assessed in 12 patients with infections by indirect calorimetry and estimation of urea nitrogen production rate. The diets were given continuously for 18 hours in a randomized cross-over study on 2 consecutive days. Energy supply (kcal/d) was adjusted individually to meet the energy expenditure measured on the preceding day after an overnight fast and was 1,647 +/- 129 (SEM) for the carbohydrate-based diet and 1,655 +/- 131 for the fat-based diet. Oxidation rates (kcal/d) for carbohydrate (carbohydrate-based diet, 525 +/- 70; fat-based diet, 363 +/- 84) were different between the diets (P less than .05), whereas no difference could be found for fat (carbohydrate-based diet, 820 +/- 117; fat-based diet, 968 +/- 136) and protein (carbohydrate-based diet, 252 +/- 29; fat-based diet, 236 +/- 23). However, during carbohydrate-based feeding, carbohydrate balance (288 +/- 93 kcal/d) and fat balance (-327 +/- 107 kcal/d) were significantly different from zero (P less than .05), indicating continuous oxidation of endogenous fat and storage of administered glucose. During the fat-based diet, carbohydrate and fat balances were not different from zero. A correlation between energy and substrate balances was not seen during either diet.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D007773 Lactates Salts or esters of LACTIC ACID containing the general formula CH3CHOHCOOR.
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D012119 Respiration The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration ( Breathing
D001786 Blood Glucose Glucose in blood. Blood Sugar,Glucose, Blood,Sugar, Blood
D002149 Energy Intake Total number of calories taken in daily whether ingested or by parenteral routes. Caloric Intake,Calorie Intake,Intake, Calorie,Intake, Energy
D004040 Dietary Carbohydrates Carbohydrates present in food comprising digestible sugars and starches and indigestible cellulose and other dietary fibers. The former are the major source of energy. The sugars are in beet and cane sugar, fruits, honey, sweet corn, corn syrup, milk and milk products, etc.; the starches are in cereal grains, legumes (FABACEAE), tubers, etc. (From Claudio & Lagua, Nutrition and Diet Therapy Dictionary, 3d ed, p32, p277) Carbohydrates, Dietary,Carbohydrate, Dietary,Dietary Carbohydrate
D004041 Dietary Fats Fats present in food, especially in animal products such as meat, meat products, butter, ghee. They are present in lower amounts in nuts, seeds, and avocados. Fats, Dietary,Dietary Fat,Fat, Dietary
D004044 Dietary Proteins Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS. Proteins, Dietary,Dietary Protein,Protein, Dietary
D004734 Energy Metabolism The chemical reactions involved in the production and utilization of various forms of energy in cells. Bioenergetics,Energy Expenditure,Bioenergetic,Energy Expenditures,Energy Metabolisms,Expenditure, Energy,Expenditures, Energy,Metabolism, Energy,Metabolisms, Energy

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