N
The Global Insight

Why do endurance athletes need protein

Author

Ava Hall

Updated on April 13, 2026

Protein, although most often associated with recovery and muscle synthesis, serves many important functions in the body of an endurance athlete. Protein is needed for the formation of hemoglobin, which carries oxygen to exercising muscles. It’s critical for controlling fluid volume and maintaining water balance.

Do endurance athletes require more protein?

A higher protein intake has been recommended for endurance athletes compared with healthy non-exercising individuals based primarily on nitrogen balance methodology.

Why do strength athletes need more protein than endurance athletes?

Athletes seeking to gain muscle mass and strength are likely to consume higher amounts of dietary protein than their endurance-trained counterparts. The main belief behind the large quantities of dietary protein consumption in resistance-trained athletes is that it is needed to generate more muscle protein.

Do endurance runners need protein?

Muscle damage is a common occurrence after a long or hard run or race. What’s more is that protein provides up to 10 per cent of the energy needed to sustain endurance exercises– like running. All of this means that endurance athletes such as runners need protein even more than the average person.

Why do endurance athletes need less protein?

Understanding (and implementing) this protein intake for endurance athletes is significant. As intensity, frequency, and duration of training increases shoot for the higher end of the protein range. Skimp on this, and your body will borrow from muscle to meet its needs—undermining fitness growth.

Why do marathon runners need protein?

As it turns out though, protein is just as important for distance runners as it is for weightlifters — aiding in tissue repair, exercise recovery, injury prevention, immune function and the production of oxygen-carrying red blood cells.

Why do endurance and strength and power athletes need more protein than the RDI?

Why do endurance and strength and power athletes need more protein than the RDI? athletes have increased needs for energy during training and competition, must repair tissue damaged during exercise, and must build new skeletal muscle to meet the demands of exercise training.

Does protein powder increase endurance?

Research suggests consuming high quality protein within 90 minutes after aerobic and anaerobic training provides increased muscle remodelling which promotes endurance capacity.

How does protein affect athletic performance or endurance training?

Intense exercise causes the proteins that make up muscle to be broken down. This damage is responsible for muscle soreness and can ultimately reduce strength and function if the proteins are not replenished. Consuming protein in the diet can offset this effect.

Why is protein needed for muscle growth?

Protein is extremely important in building muscle because the amino acids (the building blocks of protein) help repair and maintain muscle tissue. After a workout, protein helps you recover from workouts because muscles slightly tear during exercise.

Article first time published on

How much protein do CrossFit athletes need?

So protein is the most important macronutrient for building and maintaining muscle. A recommended amount for CrossFit athletes and anyone who practices strength training, is 1g per pound of bodyweight. So for our example client, that would be 140g per day.

Why do endurance athletes need fats?

Fat as Fuel – Fat Intake in Athletes. Fat is the primary fuel for light to moderate intensity exercise. Fat is a valuable metabolic fuel for muscles during endurance exercise and performs many important functions in the body, although it does not provide quick bursts of energy needed for speed.

Why is nutrition important for endurance athletes?

Quite simply, athletes need more nutrients than less-active people. They demand more from their bodies than even average fitness buffs and so must compensate with the right nutrients from foods or supplements to keep performance—and recovery—at its peak.

What does endurance exercise reduce?

Endurance exercises help maintain and strengthen muscles, reduce the risk of falls in older individuals and can help reduce symptoms related to depression, arthritis, diabetes, osteoporosis, and back pain, according to the Centers of Disease Control and Prevention.

Which protein is best for runners?

Whey protein is one of the best supplements for runners, and like any other athletes you will need around 1.5 gram to 1.8 gram of protein per kg.

How much protein do long distance runners need?

You need about 0.6 to 0.8 grams of protein per pound of body weight. For example, a 135-pound runner would need 81 to 108 grams of protein per day. It’s important to know that eating more than the recommended amount will not build lean mass faster.

How much protein does an athlete need per day?

The Academy of Nutrition and Dietetics, Dietitians of Canada and the American College of Sports Medicine recommend 1.2 to 2.0 grams of protein per kilogram of body weight per day for athletes, depending on training. Protein intake should be spaced throughout the day and after workouts.

Why do athletes consume some protein before and after their training?

It is most beneficial to consume protein both before and after sports to support muscle repair. … This can provide a supply of protein to meet your body’s needs as it increases protein synthesis after the sporting event. Your muscles greatly benefit from a direct supply of protein following your exertion, as well.

Is whey protein good for endurance athletes?

Supporting and accelerating muscle recovery is key to improving (or at least maintaining) athletic performance. Whey protein supplementation seems to be able to reduce muscle damage and, in conjunction with this, facilitate muscle recovery from strenuous training – thereby assisting performance.

How does protein supplementation improve performance?

However, as the duration, frequency, and volume of resistance training increase, protein supplementation may promote muscle hypertrophy and enhance gains in muscle strength in both untrained and trained individuals.

How does protein affect exercise?

Protein is responsible for rebuilding your muscle tissues after exercise and also plays a minor role in producing energy under more extreme training conditions. The complete proteins we consume (e.g. meats, fish, dairy, eggs, etc.) are made up of the same amino acids that make up our muscles.

Can you build muscle without protein?

Protein is important, to be sure. After all, your muscles are made of protein, and your body requires adequate protein in the diet in order to have the building blocks it needs to build up muscle mass. But protein alone won’t do. You need to pay attention to the rest of your diet as well.

What happens if you eat protein without working out?

“It’s OK to eat a little extra protein, as long as you keep your calories in check,” Metos said. “Protein has calories, so if you eat a little too much, and don’t exercise, it can get stored as fat.”

How can I get 120g of protein a day?

  1. Eat your protein first. …
  2. Snack on cheese. …
  3. Replace cereal with eggs. …
  4. Top your food with chopped almonds. …
  5. Choose Greek yogurt. …
  6. Have a protein shake for breakfast. …
  7. Include a high protein food with every meal. …
  8. Choose leaner, slightly larger cuts of meat.

How many calories does a Crossfitter eat?

The athlete consumes 4,000 calories a day, but at six foot tall and around 100 kg (220 lbs), this is what his body needs. “It’s a lot, but it’s not as much as people think because of my size and the fact that I’m training for three to four hours a day,” George said.

Do CrossFitters take protein?

A good quality whey protein powder is essential for anyone doing CrossFit multiple times a week. In fact, nowadays everyone from professional athletes to yummy mummies all consume protein shakes during the day or after training as part of a healthy lifestyle choice.

Do CrossFit athletes use creatine?

As a strength and performance supplement whose efficacy is supported by more than 100 research studies, creatine is very popular among CrossFit athletes.

Why are carbohydrate fats and protein essential for an endurance athlete?

Carbohydrates improve athletic performance by delaying fatigue and allowing an athlete to compete at higher levels for longer. nutrients, such as fat or muscle protein, are utilized to make energy.

Can fat loading work for endurance athletes?

Acute fat loading involves eating a high-fat meal (60-90 E% fat) three to four hours before a strenuous endurance exercise bout. Studies involving competitive athletes show that a high-fat loading meal does not positively influence the time to exhaustion, but instead may even shorten it: – Okano et al.

Why do athletes need unsaturated fats?

These types of polyunsaturated fatty acids are necessary to produce hormone like compounds that reduce unnecessary blood clotting, boost immune function and reduce inflammation – all important to an endurance athlete – although excess linoleic acid, found in many vegetable oils used in cooking and processed food …

What do endurance athletes need?

Endurance athletes should eat 8 to 10 grams of carbohydrate per kilogram (kg) of body weight per day. This will depend on the duration of their endurance event. For endurance training lasting 4 to 5 hours, endurance athletes should consume 10 grams per kilogram of body weight.