The Effect of Dietary Fish Oil in addition to Lifestyle Counselling on Lipid Oxidation and Body Composition in Slightly Overweight Teenage Boys

[摘要] Objective.n-3 long-chain polyunsaturated fatty acids (LCPUFAs) have shown potential to increase lipid oxidation and prevent obesity.Subjects. Seventy-eight boys aged 13–15 y with whole-body fat% of30±9%were randomly assigned to consume bread with fish oil (FO) (1.5 gn-3 LCPUFA/d) or vegetable oil for 16 weeks. All boys were counselled to improve diet and exercise habits.Results. Lifestyle counselling resulted in decreased sugar intake but did not change the physical activity level. Whole-body fat% decreased0.7±2.5%and0.6±2.2%, resting metabolic rate after the intervention was7150±1134 kJ/d versus7150±1042 kJ/d, and the respiratory quotient was0.89±0.05versus0.88±0.05, in the FO and control group, respectively. No group differences were significant.Conclusion. FO-supplementation to slightly overweight teenage boys did not result in beneficial effects on RMR, lipid oxidation, or body composition.

[学科分类] 内分泌与代谢学