The problem of the present invention is to provide a nutritional composition having an effective prophylactic and/or improving effect for various symptoms of muscle mass decrease, decreased basal metabolism, low body temperature, suppression of obesity, suppression of visceral fat accumulation, hyperglycemia, hyperlipidemia and the like in elderly people. A nutritional composition containing n-3 fatty acid and one or more kinds selected from the group consisting of free lysine, dipeptides containing lysine and lysine salts, wherein the content of the total amount of one or more kinds selected from the group consisting of free lysine, dipeptides containing lysine and lysine salts is 0.1 g - 10.0 g per 100 kcal of the composition, and the content of the total amount of n-3 fatty acid is 0.17 g - 5.00 g per 100 kcal of the composition.
