http://www.veganhealth.org/articles/protein
Wobei anzumerken ist, vegane FreizeitsportlerInnen dürften in den meisten Fällen bereits mit etwas mehr Proteinzufuhr als DurchschnittsveganerInnen gut versorgt sein, das heißt, mit 1 bis 1,3 g/kg.VeganHealth.org hat geschrieben:Protein Recommendations for Vegans
... an estimate is that vegans might benefit from 1.0 to 1.1 g/kg of protein. What is really needed is nitrogen balance studies on actual vegans.
Protein Needs of Athletes
The Institute of Medicine, who sets the RDAs, does not recommend higher protein intakes for athletes. However, in a 2009 joint position paper on nutrition and athletic performance, the American College of Sports Medicine (ACSM), the American Dietetic Association (ADA), and Dietitians of Canada recommend higher protein intakes for athletes. They say:
Endurance athletes - "Nitrogen balance studies suggest that dietary protein intake necessary to support nitrogen balance in endurance athletes ranges from 1.2 to 1.4 g/kg/day."
Strength athletes - "Recommended protein intakes for strength-trained athletes range from approximately 1.2 to 1.7 g/kg/day." and "The amount of protein needed to maintain muscle mass may be lower for individuals who routinely resistance train because of more efficient protein use."
Vegetarians - "Because plant proteins are less well digested than animal proteins, an increase in intake of approximately 10% protein is advised. Therefore, protein recommendations for vegetarian athletes approximate 1.3–1.8 g/kg/day."