Nutrition and athletic performance

The diet recommended for an athlete differs little from the diet suggested for any healthy individual. The food guide pyramid is an excellent resource. However, the amount of each food group needed will depend on the type of sport, the amount of training and the time in relation to activity or exercise. Calorie needs vary with the size, age, sex and physical activity performed by the individual so the number of servings a person requires will vary.

CARBOHYDRATES

Complex carbohydrates are a diet staple. They are found in foods such as pasta, bagels, whole grain breads and rice. They provide energy, fiber, vitamins, and minerals and are low in fat. Carbohydrate loading (a concerted diet/training regimen) will increase the body's energy stores of a carbohydrate called glycogen. Carbohydrate loading has been shown to improve performance in endurance-type activities lasting more than 1 hour.

The classical method of carbohydrate loading has been abandoned and replaced by a modified method which is safer and equally effective at increasing muscle glycogen. The most important factor influencing glycogen stores is to consume 50 - 60% of calories from carbohydrates on a daily basis.

Simple sugars such as soft drinks, jams and jellies, and candy provide few nutrients but a lot of calories. They may actually decrease performance when consumed directly before an athletic event as they may cause hypoglycemia .

PROTEIN

Protein's most important functions in the body are to support growth and to repair body tissues. Many people feel athletes need a high-protein diet to support muscle growth despite the fact that researchers have repeatedly proved this false.

It is also a myth that a high-protein diet will promote muscle growth. Only strength training and exercise will promote changes in muscle. Athletes, even body builders, require only small increases over normal needs in order to support muscle growth. Athletes easily meet this increased need by simply consuming more total calories (eating more food).