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Sports Nutrition for Athletes

Updated: Apr 9, 2023


Many athletes and coaches believe that sports nutrition is the single most important factor in achieving peak performance. There are many different opinions about what constitutes an athlete's ideal diet, but there is general agreement on some principles. To achieve optimum performance, athletes must consume a consistent, balanced diet with adequate calories and nutrients to fuel their body's needs and provide energy for exercise. The exact composition of this diet will differ from person to person based on factors such as age, sex and weight; however there are some general guidelines which apply to all athletes

The role of carbohydrate in sports and exercise

Carbohydrates are the primary source of energy for the body. They are stored in the muscles, liver and blood, and provide energy when you eat them. Carbohydrates also help to build muscle tissue, build red blood cells which carry oxygen around your body, fight fatigue during exercise and recover more quickly after exercise.

Carbohydrate should be obtained from a variety of foods such as breads, cereals, potatoes (eg sweet potato), fruit (eg banana), milk products (eg low fat yoghurt) or starchy vegetables (eg peas). This ensures that you get enough fibre from these foods which helps prevent constipation during training sessions where there is limited time for toilet breaks!

Protein for sports and exercise

Protein is an important part of a healthy diet, and athletes need to eat more protein than people who are sedentary. Protein can help you build muscle, recover from exercise and lose weight. It is also necessary for energy levels, mood and sleep quality.

Athletes have different needs from those who aren’t exercising regularly — so it’s important to understand how much you need and when you should be eating it.

The role of fat in sports and exercise

Fat is a fuel source for muscles, so it's important that your body has enough fat to keep you going throughout practice and games.

  • Fat is an energy storage molecule, which means it's used when carbs aren't available or when people have eaten too many carbs and need to get their blood sugar levels down.* Fat also plays a role in muscle repair after strenuous activity such as sprinting or lifting weights.* The brain needs fat for healthy functioning of neural pathways.* It also helps regulate hormones (which control appetite), keeps skin smooth and supple, protects internal organs from damage if you fall down during your sport, makes up part of cell membranes (including those in our brains), maintains normal vision by helping transport vitamin A into the retina (the light-sensitive tissue at the back of our eyes), enables absorption of certain vitamins A & D into our bloodstreams; assists with absorption & utilisation of certain B vitamins (such as vitamin B12)…

Vitamins and minerals for athletes

If you are an athlete, it is important to take care of your body and provide it with the nutrients and vitamins it needs to perform at its best. This article will give you some ideas about how to do that.

Vitamins and minerals are essential for good health. Iron, zinc and magnesium are particularly important for athletes because they help increase energy levels, reduce fatigue and improve recovery time after workouts or competitions. Vitamins C and E also play a role in immune system function; vitamin A helps promote healthy vision; calcium builds strong bones; potassium helps reduce muscle cramps; chromium improves insulin sensitivity (which can increase athletic performance); selenium promotes lean muscle growth; thiamine lowers cholesterol levels while increasing endurance performance while folic acid aids in cell repair after exercise-related injuries

Sports drinks and performance in endurance sport

The primary purpose of sports drinks is to help athletes maintain their fluid and electrolyte balance. This is because during exercise, the body loses a lot of water through sweat and needs to be replenished with fluids. Sports drinks are designed to be consumed during exercise, not before or after. Because activity level can vary greatly from person to person, it's important that you experiment with different amounts of sports drink until you find the amount that works best for you (typically somewhere between 4-8 ounces per hour).

Sports drinks contain carbohydrates in order to provide fuel for muscles for short bursts of energy (like sprinting) as well as longer endurance activities like running long distances. Carbohydrates are also important because they're used by the body for fuel during exercise sessions lasting more than an hour; however, if a high quality carbohydrate source is available such as fruit or vegetables then consuming additional carbohydrates from a sports drink may not be necessary depending on how much other energy sources are available throughout competition.

Sports drinks and performance in team sports

This is the most important thing to know: you don’t need a sports drink in order to play team sports. In fact, unless you play a sport like tennis or golf where the duration of exercise is short and intense, your body will be able to recover easily with water alone.

For example, if you play volleyball or basketball for an hour at a time and have five-minute breaks in between games (or even just one), your body can get all the carbohydrates it needs from food eaten during those breaks. If it takes longer than five minutes between games or training sessions (or if you’re playing in hot conditions), then yes—a carb-loaded drink could aid recovery by replenishing glycogen stores faster than food alone would do so.

Caffeine for sports performance

Caffeine is one of the most studied compounds in sports nutrition. Caffeine can improve endurance and performance, increase alertness and concentration, reduce pain perception, improve mood, and enhance fat oxidation.

  • Caffeine can improve endurance and performance: In a study published in the Journal of Strength & Conditioning Research on trained cyclists who were given caffeine before an exhaustive time trial (a race where you try to go as fast as possible while riding a bicycle), subjects had higher power output (power equals force times velocity) at 5k than when they weren’t given caffeine. The researchers found that after taking 200mg of caffeine for two days prior to the test and then taking another 200mg dose just before competition began was enough to significantly boost performance compared to when no caffeine was taken at all.*

  • Caffeine can help you stay alert: In another study published in Sleep Medicine Reviews , subjects who took 300mg of caffeine per day for ten days were more alert than those who took a placebo pill daily.*

Alcohol and sport performance

Alcohol can affect sports performance in a variety of ways. According to the Centers for Disease Control and Prevention (CDC), alcohol impairs coordination, reaction time, and balance. It also causes dehydration by inhibiting the body's ability to retain water, which can lead to fatigue during physical activity.

There are other health risks associated with drinking alcohol regularly: weight gain; liver damage; heart disease; stroke or high blood pressure; diabetes; cancer (certain cancers); and effects on fertility (in men). In addition to these long-term effects, drinking too much alcohol before exercise can increase your risk of injury because of its sedative effect on the central nervous system.

Athletes who want to improve their sport performance need to pay attention to their nutrition.

Sports nutrition is the study of what athletes need in order to perform at their best and recover from exercise, as well as how they can maintain a healthy lifestyle throughout their careers. The right diet can help you sustain energy levels, enhance training results and prevent injuries - all of which can help you improve your game!

There's no one-size-fits all approach when it comes to eating for sport; everyone has different preferences, metabolisms and goals, so it's important that you find out what works for you - whether this means adding extra protein after training sessions or sticking strictly with gluten-free foods because they're easier on your stomach while exercising heavily. Whatever approach works best for you personally should always be considered first before considering any other strategies or recommendations made by others (unless those people are licensed nutritionists).


It’s important for athletes to monitor their nutrition, especially during the off-season. If you want to improve your sport performance, try adding more carbohydrate and protein into your diet. You might also want to consider taking vitamin supplements or drinking water with electrolytes as well as sports drinks like Gatorade® or Powerade® when you exercise in order replenish lost fluids and minerals faster than pure water alone can do so. Ensure you consume enough calories to fuel your training and allow for adaptations to occur (Building muscle, recovery etc). Try and eat natural foods if possible, such as those that don't come in a packet. Examples include fruit, nuts, vegetables, meat and rice. Experiment with timing of eating as well as different foods in training first, before using these strategies in a competitive game.

Good luck!

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