In a person who plays sport the daily protein need parts ways according to the type of sport. Türkiye Beslenme Rehberi (TÜBER), Türkiye's national dietary guideline, gives two separate values: 1.2-1.4 grams per kilogram a day for endurance athletes, and 1.6-1.7 grams for strength athletes. As a share of energy, about 12-15 percent of an athlete's daily energy requirement should be supplied from protein.
Why two separate values?
The guideline states that the amount of protein an athlete needs changes with their conditioning level, the type of exercise, their body weight, their total daily energy requirement and their carbohydrate consumption. Protein is needed for the repair and the development of muscle tissue; in child and young athletes it also supports growth and development. The athlete's energy requirement forms a wide band as well: according to the guideline it varies between 2000 and 5000 calories a day.
There is a limit the guideline underlines here. Protein lets the muscles grow stronger and gain volume, but this process happens not with a high protein diet alone but together with strength training. That is, protein does not produce a result on its own. The guideline counts carbohydrate consumption among the factors that set the amount of protein; the two macros are not calculated independently of each other.
The calculation per kilogram
The calculation is a single multiplication. In a 70 kilogram endurance athlete the 1.2-1.4 g/kg range comes to 84-98 grams a day. In a strength athlete of the same weight the 1.6-1.7 g/kg range makes 112-119 grams.
For comparison, the value for a healthy adult is 0.83-1.0 grams per kilogram. So the range given for an athlete is clearly higher than the general recommendation, but it does not rise by multiples; even the upper value for a strength athlete does not reach twice the adult floor.
The recovery window
Timing is defined as much as amount. The guideline recommends consuming 20-25 grams of good quality protein right after exercise or within two hours, for the repair of muscle tissue and for increased protein synthesis.
The composition of that amount is written down as well: it should contain 10 grams of essential amino acids and 3 grams of the amino acid leucine. In the same section it is stated that protein consumption improves body composition through strength training and provides an increase in strength. The carbohydrate side sits in the same window: so that the muscle glycogen store is renewed fast and to a sufficient level, starting carbohydrate consumption right after exercise is asked for.
Is a supplement needed?
The answer the guideline gives to this question is a single sentence and it is clear: the recommended amount of protein can be met with the diet without using protein or amino acid supplements. So a supplement is not set down as a necessity.
The practical equivalent of meeting it with the diet is the portion measure, and the standard portion weights are gathered in the portion measure article. When the items are spread through the day, the target stays reachable even as it rises. The milk group is counted separately in this picture: the guideline states that the daily average calcium requirement of 1200 milligrams in young athletes is met with about four portions of milk and milk products; one portion is a glass of milk, a glass of yogurt, or cheese the size of two matchboxes.
How is the meal order built?
The guideline recommends that athletes too meet their increased energy and nutrient requirement by eating three main meals and three snacks. The interval given for the main meal is 3-4 hours before training; the reason is to leave time for digestion to be completed.
The composition of the pre-training meal is defined too, and protein does not stand alone there: a meal with plenty of fluid to provide hydration, low in fat and fiber to prevent stomach and bowel complaints, rich in low and moderate glycemic index carbohydrates to sustain the blood glucose level, and containing a moderate level of protein is recommended.
This description puts a limit on the protein side as well. It is stated separately that consuming high fat, high protein and high fiber foods before exercise can lead to digestive system problems during exercise; that is, most of the daily target is spread through the day rather than placed before training.
Where does it turn into a mistake?
The first mistake is making the protein increase by lowering carbohydrate; the athlete's basic energy source is carbohydrate, and when the glycogen stores run out performance falls. The second mistake is taking the upper end of the range as the target for everyone; 1.6-1.7 g/kg is for a strength athlete, and the range of an endurance athlete is lower than that.
The third mistake is putting the recovery window in place of the total. The 20-25 grams after exercise is a part of the daily target, not the target itself. You can follow the calculation of the daily total from the protein guide, and the carbohydrate side from the athlete carbohydrate guide.
This content has been prepared to support general nutrition literacy; it does not take the place of medical diagnosis or treatment and does not carry the character of personal nutrition advice. A personalized plan is prepared only by a qualified dietitian; if there is pregnancy, chronic illness, regular medication use, child nutrition or a clinical condition, supervision by a doctor and a dietitian is required before starting a plan.