Fat Quality Impacts the Effect of a High-Fat Diet on the Fatty Acid Profile, Life History Traits and Gene Expression in .

Feeding a high-fat diet (HFD) has been shown to alter phenotypic and metabolic parameters in . However, the impact of fat quantity and quality remains uncertain. We first used butterfat (BF) as an example to investigate the effects of increasing dietary fat content (3-12%) on male and female fruit flies.

Phenotyping of -A Nutritional Perspective.

The model organism was increasingly applied in nutrition research in recent years. A range of methods are available for the phenotyping of , which are outlined in the first part of this review. The methods include determinations of body weight, body composition, food intake, lifespan, locomotor activity, reproductive capacity and stress tolerance.