Dietary supplement
According to US & Canadian Dietary Reference Intake guidelines, the protein Recommended Dietary Allowance (RDA) for adults is based on 0.8 grams protein per kilogram body weight. The recommendation is for sedentary and lightly active people. Scientific reviews can conclude that a high protein diet, when combined with exercise, will increase muscle mass and strength, or conclude the opposite. The International Olympic Committee recommends protein intake targets for both strength and endurance athletes at about 1.2-1.8 g/kg body mass per day. One review proposed a maximum daily protein intake of approximately 25% of energy requirements, i.e., approximately 2.0 to 2.5 g/kg.
Essential fatty acid
Reference intake values for as published by the Panel on Dietetic Products, Nutrition and Allergies of the European Food Safety Authority (EFSA).
In the United States, the recommendations for omega-3 fatty acids covers ALA, EPA and DHA, and for adults the values are 1.6 g/day for men and 1.1. g/day for women. The recommendation for omega-6 fatty acids is for linoleic acid: 17 g/day for younger men, dropping to 14 g/day for older men; for women 12 and 11 g/day.