Zitat:
	
		
		
			nur am rande noch erwähnt: refeeds, fischöl und co. sind ja auch konstrukte, die auf theoretischer wissenschaft basieren, obwohl sie nie experimentell bestätigt wurden. dafür weisen wir BBler sie in unserer täglichen praxis immer wieder und wieder nach
			
		
	
 Eben, genau diese Herangehensweise ist die einzig sinnvolle.
	Zitat:
	
		
		
			 Nutr. 1989 Sep;119(9):1240-5. 
Influence of dietary carbohydrate-to-fat ratio on whole body nitrogen retention and body composition in adult rats. 
McCargar LJ, Baracos VE, Clandinin MT. 
Department of Foods & Nutrition, Faculty of Home Economics, University of Alberta, Edmonton, Canada. 
Experiments have shown that the amount and source of dietary energy may alter protein metabolism. A high fat diet has resulted in greater nitrogen retention than a high carbohydrate (CHO) diet. To examine this question further, adult rats were fed diets providing ratios of CHO:FAT as a percentage of energy of 0.5, 1.0, 1.5, 2.0, 2.5 or 3.0 for 6 wk. Mean energy and protein intakes were 93.0 +/- 0.8 kcal/d and 5.3 +/- 0.1 g/d, respectively. Final body weight was lower in rats fed the high fat diet (CHO:FAT, 0.5) than in rats fed the high carbohydrate diet (CHO:FAT, 3.0) (P less than 0.05), and a linear response was observed over the entire range of treatments (r = 0.92). Rats fed the high fat diet had the highest nitrogen balance; values were significantly (P less than 0.05) different from those of rats fed high carbohydrate diets (CHO:FAT, 2.0 or 2.5) when expressed as mg nitrogen/kcal energy gain. Rats fed the high fat diet had the highest protein gain and the lowest fat gain as a function of energy gain. It is concluded that alterations in nonprotein energy source result in metabolic changes, which may be related to adaptations in energy expenditure and/or protein deposition.