Carbohydrates
Golfers need energy to maintain peak performance throughout 18 holes. A primary energy source comes from carbohydrates, including foods such as pasta, whole grains, fruits and vegetables. These foods provide fuel to both the brain and nervous system while maintaining protein levels. On average, 50 percent of a golfer's total calories should come from carbs.
Protein
Protein is necessary for golfers to build and repair muscle tissue. While most meats are an excellent source of protein, many meats are also high in saturated fat, so caution must be taken when consuming them. Some meats that are high in protein and lower in fat include chicken, turkey and lean cuts of beef. For the vegetarian, beans are also high in protein. A healthy diet for golfers should consist of about 20 percent of calories from protein.
Fat
While consuming too much fat may be unhealthy, it is still an important source of energy for the golfer. At most, 30 percent of a golfer's calories should come from fat, as more could lead to eventual health problems such as high cholesterol and heart diseases. Foods containing "good" fats include fish, peanut butter and nuts.
Hydration
Fluids are an important component of a golfer's diet, as mild dehydration can lead to fatigue and lack of mental focus, while more serious dehydration can cause vomiting, loss of consciousness or even death. As a rule, golfers should drink four to eight ounces of fluids at every hole. Alcohol also should be avoided.
Supplements
Over-the-counter dietary supplements also can be helpful, especially for golfers who may not eat properly. Common supplements include those that provide protein, such as egg protein, which can be consumed during or after the round. Ginko-bilboa and fish oils will help the golfer to maintain focus during play.
About The Author
Chris Joseph is a freelance writer residing in Pennsylvania. He has written hundreds of articles for newspapers and the Internet on a variety of topics, including several on golf for GolfLink.com. He holds a Bachelor of Science degree in marketing from York College of Pennsylvania.