The protein ratio of the healthiest diet is 25-35%.

　According to the 3 food supply and demand table (approximate) of the Ministry of Agriculture, Forestry and Fisheries, the ratio of calories supplied per person per day for the three major nutrients (protein, lipid, carbohydrate) in Japan is 1% protein, 1% lipid, and 13.8% carbohydrate. 32.5%.A well-balanced diet is said to be the secret to a long life, but what is the optimal balance of the three major nutrients?

　In this study, with the aim of clarifying the ideal protein ratio for maintaining good health in old age and for healthy longevity, mice were fed diets with a fixed lipid ratio of 25% and varying protein ratios. , conducted an experiment to examine the effects on health.The comparison subjects were the P5 group (5% protein, 70% carbohydrate, 25% fat), the P15 group (15% protein, 60% carbohydrate, 25% fat), and the P25 group (25% protein, 50% carbohydrate, 25% fat). ), P35 group (35% protein, 40% carbohydrate, 25% lipid), and P45 group (45% protein, 30% carbohydrate, 25% lipid). The P5 group is the group closest to the current balance of the three major nutrients in Japan.

　Two months later, in both young (2 months old) and middle aged (6 months old) mice, the liver triglyceride content, blood sugar level, and blood The result was that the total cholesterol concentration was suppressed.In other words, it is suggested that a dietary protein intake ratio of 16-25% may be most useful for maintaining good health for both young and middle-aged people.

　Considering that the current protein intake ratio in Japan is 13.8%, it is expected that increasing the protein ratio in the diet will contribute to health maintenance and healthy longevity through the balance of the three major nutrients.

Paper information:[GeroScience] Moderate protein intake percentage in mice for maintaining metabolic health during approach to old age