The role of vitamin C in sports performance

Carlos Sánchez 7 min. of reading Vitamins Leave a comment

Vitamin C is essential for athletes, as it combats the oxidative stress generated during intense exercise, protecting muscle fibres and promoting a positive adaptation to physical effort.
Essential for preventing anaemia and improving sports performance, vitamin C increases iron absorption, which is vital for oxygen transport and muscular endurance.
By acting in the healing and regeneration of connective tissue, vitamin C is key to injury recovery, helping you return to physical activity more quickly and effectively.

Because it is undeniable that vitamin C is a fundamental pillar in sport. When you engage in intense physical activity, you experience a higher expenditure of nutrients, due to the strain you place on your body.

For this reason, its intake in general, and that of vitamin C in particular, is recommended. In this way, you will be supplying your body with the nutrients it needs, through food or dietary supplements. But specifically, what can vitamin C do for you before and after training?

Index

1 6 benefits of vitamin C for athletes
2 Which athletes is it recommended for?
3 Is it a good idea to take vitamin C supplements?
4 Conclusions

6 benefits of vitamin C for athletes

Discover the main benefits of vitamin C that every athlete should know.

1 Neutralises free radicals

During intense and prolonged aerobic exercise, the increase in oxygen load can disrupt the oxidation-reduction system, generating a significant rise in the formation of free radicals and triggering oxidative stress.

This imbalance between the production of reactive oxygen species and the body’s ability to neutralise them can result in damage to muscle fibre.

However, this process is not entirely negative, as the increase in free radical production can act as a vital stimulus for adaptation to physical effort, thereby improving the body’s ability to defend itself against future exercise-induced stressors.

2 Involved in carnitine synthesis

Vitamin C plays an important role in energy metabolism, especially during long-duration physical activities. This essential nutrient is necessary for the synthesis of carnitine, a molecule that plays a key role in the transport of fatty acids across the inner mitochondrial membrane, where these fatty acids are converted into energy.

Carnitine therefore facilitates the use of fatty acids as the main fuel source during prolonged exercise, contributing to the energy efficiency of muscle fibres.

This process is vital for athletes and active people, as it allows the body to maintain its energy levels during extended periods of physical activity, optimising performance and endurance. The ability to efficiently convert fatty acids into energy not only helps improve exercise capacity, but also supports muscle health and post-exercise recovery.

3 Helps iron absorption

Vitamin C stands out in sport for its ability to improve iron absorption, an essential element for oxygen transport and, therefore, for muscular performance and endurance.

Its role is vital in counteracting the risk of anaemia, a condition that can cause fatigue and affect performance, especially in female athletes due to factors such as menstrual blood loss.

By facilitating iron absorption, vitamin C helps prevent anaemia, thereby improving exercise capacity and accelerating recovery, highlighting the importance of including this nutrient in athletes’ diets.

4 Supports muscle contraction

During exercise, especially in strength training that involves intense muscle contraction, vitamin C acts as an antioxidant that helps neutralise the free radicals generated by elevated energy metabolism.

This antioxidant action is vital for protecting muscle cells from oxidative stress, thereby facilitating their recovery and optimising their function.

This means that an adequate intake of vitamin C can improve energy efficiency during muscle contraction, resulting in better strength performance and greater muscular work capacity.

5 Supports respiratory-intestinal system health

In addition to its well-known role in the prevention and relief of the common cold, vitamin C is highly valued in sport for its ability to strengthen the immune system.

Athletes, especially those undergoing intense and prolonged training, face a higher risk of suffering respiratory and gastrointestinal infections due to the temporary suppression of the immune system after exercise, a phenomenon known as “exercise-induced immunodepression“.

The immunostimulant action of vitamin C plays a prominent role in this context, helping to prevent such infections by enhancing the body’s natural defences. By stimulating the production and function of leukocytes and improving the epithelial barrier against pathogens, vitamin C becomes an indispensable ally for athletes.

6 Promotes recovery

Vitamin C plays a fundamental role in injury recovery, an important aspect for any active person or athlete. This essential nutrient is not only vital in the healing process, helping to repair and close wounds more quickly, but is also key in the regeneration of connective tissue.

By participating in collagen synthesis, vitamin C ensures that damaged tissue, whether muscles, tendons or ligaments, is repaired effectively, strengthening recovery and minimising time out of action.

Which athletes is it recommended for?

Vitamin C is good for everyone! That is undeniable. However, there are certain groups, such as athletes, who may particularly benefit from its qualities.

Athletes who compete and prepare for long-distance events.
Athletes exposed to specific environments, such as skiers or expedition members subjected to extremely low temperatures.
Sportspeople and athletes who experience rigorous physical stress.

Is it a good idea to take vitamin C supplements?

It depends on the amount of fruit and vegetables you consume. If the intake of these foods you provide to your body is not sufficient, it is advisable to include vitamin C supplements in your daily diet, which will help you prevent colds, with the inherent advantages that this brings, as we have just explained.

At HSN, we offer a variety of vitamin C supplements to suit your specific needs: from vitamin C powder, which combines affordability with the ability to dose your intake precisely, to capsules, perfect for their ease of consumption and practicality for taking with you anywhere.

Vitamin C 1000mg + Bioflavonoids + Rosehip from EssentialSeries

Conclusions

To finish, we would like to include a few brief points for you to keep in mind.

Vitamin C supplements are useful when it comes to preventing certain health disorders.
The antioxidant effect of vitamin C becomes especially important with the appearance of free radicals. In particular, those who practise long-duration aerobic sports are exposed to a higher risk.
Its positive effects ultimately have an impact above all on aerobic capacity and muscular strength, on muscle damage caused during eccentric exercise and on the treatment of certain manifestations of fatigue and overtraining.

In short, if you practise sport, make the most of vitamin C!

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