Carbohydrate and protein are an attribute to enhance the life-history determinants in Drosophila

Dietary restriction extends life span across a vast diversity of taxa, but the key nutritional components driving this process and how they interact remain uncertain. In Drosophila, while a substantial body of research suggests that protein is the major dietary component affecting longevity, recent studies claim that carbohydrates also play a central role. To clarify how nutritional factors influence longevity, nutrient consumption and lifespan were measured on a series of diets with varying casein and sugar content. Increased dietary carbohydrate or protein concentration does not always result in increased longevity. Our study indicates that the combination of carbohydrate and protein has certainly experiences significant effects with increased values rather than only carbohydrates nor only protein for the life history traits recorded. Thus the media enriched with the rich sources of food composition as resulted with enhanced mating activity, productivity and longevity in Drosophila melanogaster.