Protein Needs for Training


Protein has been considered a key nutrient for sporting success by athletes of all eras.


Today, athletes are provided with a vast array of protein and amino acid supplements to increase their protein intake. 

Research shows that enhanced protein balance is a desirable goal of the recovery phase.  The purpose is to overturn the increased rates of protein breakdown that occur during exercise and to promote muscle growth, repair, and adaptation following exercise.  These studies have shown that a high quality protein after a training session enhances protein synthesis during the recovery period.  Usually, 10 g of protein is enough to achieve this effect, and 20 to 25 g is shown to achieve the maximum effect.  Protein should be consumed within 30 minutes of an event or exercise.  Protein that comes from animal sources, such as dairy, eggs, meat, fish, and poultry, is considered high quality protein

Some scientists have suggested that endurance and resistance-trained athletes in heavy training have increased protein needs - up to a maximum of 1.2 to 1.7 grams of protein per kig of body weight.  However, this evidence is not clear or universal. 

Whey protein is popular as a recovery supplement because it provides a rapidly absorbed high-quality protein source.  However, only a small serving of whey protein is necessary, and the real value is that these supplements can be practical and convenient to consume after exercise.  They can be very expensive, but an everyday food such as milk or yogurt may be just as effective for a fraction of the cost.  Sweetened versions of these dairy foods can provide protein, carbohydrates, fluid, and electrolytes for immediate recovery as well as other nutrients (such as calcium) for total health.  Read the chart below for some examples of common foods high in protein.  


Protein Rich Foods for Athletes


Each of the following foods provides 10 grams of protein:

Animal Foods
Plant Foods
2 small eggs
4 slices of wholewheat bread
1 cup low fat milk
3 cups wholegrain cereal
50 grams grilled fish
2 cups cooked pasta
40 grams lean chicken
3 cups cooked rice
70 grams cottage cheese
200 grams baked beans
200 grams reduced fat yogurt
60 grams nuts or seeds
45 grams lean beef, lamb or pork
100 grams soy meat


Circumstance
Targets
 Immediate recovery after fuel-depleting exercise
10-25 grams of protein within 30 minutes of exercise
Group Targets
Sedentary men and women
0-8-1.0 g/kg/day
Elite endurance athletes
1.6 g/kg/day
Moderate-intensity endurance athletes
1.2 g/kg/day
Recreational endurance athletes
0.8-1.0 g/kg/day
Football, power sports
1.4-1.7 g/kg/day
Resistance athletes
1.0-1.2 g/kg/day
Female athletes
15% lower than male athletes







 Although some resistance-trained athletes and body builders consume more than 2 to 3 grams per kg body weight, no evidence shows that these high daily protein intakes increase the gains in muscle mass or strength.  These diets are not necessarily harmful, but they are expensive and can fail to meet other nutritional goals, such as providing the fuel (carbs) needed for training and performance.
 

Example Athletes

What is the daily recommend total of protein (in grams) for each of the example athletes?  Use the target for protein intake for your calculations. To change pounds to kilograms, divide the weight in pounds by 2.2.

  

Sarah is considered a moderate-intensity endurance athlete. 

Calculate total grams of protein:
68 kg (150 pounds) x 1.2 = 81.6 grams of protein each day

Factor of 15% lower because the athlete is female:
81.6 x 0.15 = 12.24 g less than original calculation
81.6 - 12.24 = 69.36 grams


  


Wrestling is a very demanding sport that requires endurance, strength, agility, and flexibility. 
 
63.5 kg (140 pounds) x 1.4 = 88.9 grams of protein each day


  


As a football player, Marc must have endurance, strength, and agility. 

108.9 kg (240 pounds) x 1.7 = 185.13 grams of protein each day