Magnesium and sport: why is it essential for performance?

Magnesium, an ally for athletes: discover why it is essential for performance, how to avoid deficiencies and optimize your recovery.

Key takeaways:

  • Magnesium is an essential mineral for athletic performance, muscle recovery, and stress management.

  • Athletes have increased magnesium requirements, especially in cases of intense physical activity .

  • Deficiencies are common, impacting energy , sleep and increasing the risk of muscle cramps .

  • Certain foods and forms of supplements, such as magnesium bisglycinate , are particularly effective.

  • Incorporating magnesium into your routine, through diet or supplementation, optimizes performance and well-being .

Introduction

Physical activity puts the body under considerable strain. While training, rest, and nutrition are already cornerstones for progress, there's an often-underestimated ally: magnesium . Why is this essential mineral so central to athletic performance? How does it help with recovery and prevent cramps? Discover the answers and practical advice to optimize your magnesium intake and transform your sports routine. 

What is the purpose of magnesium?

Magnesium is an essential mineral : it is involved in more than 300 enzymatic reactions in the body.

His key role To enable the transformation of nutrients into energy , to regulate the nervous system balance , and to support muscle contraction. 

The functions of magnesium in athletes

  • Energy production : Magnesium is involved in the synthesis of ATP, the energy molecule of cells. Without it, it is impossible to sustain physical effort for long periods or to optimize recovery .

  • Muscle support : It plays a central role in muscle contraction and relaxation. Too low a level increases the risk of muscle cramps , twitching, or premature fatigue.

  • Stress management : Intensive training and competition generate stress. Magnesium regulates the nervous system , helping to maintain a strong mind and promote restful sleep.

  • Electrolyte balance : Along with sodium, potassium and calcium, magnesium maintains fluid balance and supports hydration during exercise.

Why is magnesium vital during exercise?

During physical activity , magnesium loss increases due to sweating, increased muscle exertion, and accelerated cell renewal. Without replenishment, the body becomes exhausted more quickly and progress slows.


Impulse Nutrition Tip : To support essential enzymatic reactions , consider varying your diet with foods rich in magnesium (cashews, seafood, whole grains, etc.).

Why are the needs of athletes increased?

Athletes' metabolism accelerates More energy consumed, more toxins to eliminate, more oxidative stress to manage. Result : nutrient requirements, particularly for magnesium , are significantly higher than those of a sedentary person. 

Physical exertion and magnesium

  • Sweating : Every drop of sweat carries magnesium out of the body. Endurance sports or training in high heat accelerate this process.

  • Cellular renewal : Muscle tissue regenerates more quickly in athletes. Magnesium plays a direct role in these repair processes.

  • Stress response : Exertion, especially in competition, triggers an increased production of adrenaline and cortisol. Magnesium helps stabilize the nervous system during this overload.

Comparative table: daily magnesium requirements in adults (source ANSES)

Population Daily magnesium requirements (mg)
Sedentary adult 350-400
Moderately athletic 400-500
Intensive athlete 500-600

Note : These values ​​vary according to age, sex, intensity of physical activity and lifestyle. 

Signs of magnesium deficiency in athletes

  • Regular muscle cramps , unusual fatigue, irritability, sleep disturbances

  • Decreased performance , longer recovery time, increased risk of injury

  • Increased sensitivity to stress or difficulty staying focused during exertion

What are the likely causes of a magnesium deficiency?

Even with a balanced diet, magnesium deficiency is a risk for many athletes. Several factors explain this phenomenon. 

The main causes of deficiency

  • Diet low in magnesium : Ultra-processed, refined foods contain few vitamins and minerals. However, many athletes consume too few leafy green vegetables, whole grains, or seafood.

  • Losses related to physical exertion : The more intense the training, the greater the losses through sweat and urine.

  • Limited digestive absorption : Certain digestive disorders (common in athletes), taking medications (diuretics, proton pump inhibitors) reduce the absorption of magnesium.

  • Stressful lifestyle : Chronic stress depletes magnesium reserves, exacerbating the vicious cycle of fatigue/stress/cramps. Discover our sleep & fatigue duo to combat this phenomenon. 

  • Pollution and depleted soils : Today, even foods reputed to be “rich in magnesium” contain fewer minerals than before, due to soil degradation.

How to detect a deficiency?

Not always easy Magnesium deficiency often remains subtle at first. Standard blood tests only reflect a small portion of the body's total magnesium. Several warning signs should alert you. Frequent cramps, fatigue, sleep disturbances, eyelid twitching, difficulty recovering. 

What are the different types of magnesium? Do they have different effects?

When diet alone is not enough, dietary supplements can be useful, provided that the right form of magnesium is chosen. 

The main forms of magnesium

Type of magnesium Strengths Weak points For whom?
Marine magnesium High magnesium content Average tolerance For daily maintenance
Magnesium citrate Excellent bioavailability, fast action Acidic taste, may irritate the intestines For demanding athletes
Magnesium bisglycinate Very high absorption, digestive tolerance Slightly higher cost In case of digestive problems
Magnesium chloride Efficient, economical, versatile use Strong taste, possible laxative effect For occasional treatments
Magnesium oxide High magnesium content Poor absorption Not recommended for athletes

Which form is best for performance?

For athletes, magnesium citrate and magnesium bisglycinate are particularly recommended. : their bioavailability allows for rapid and efficient absorption, especially in cases of high needs related to regular and intense sports practice . 

Impulse Nutrition's expertise is based on the selection of high-quality raw materials, such as magnesium bisglycinate , to guarantee optimal assimilation without compromising digestive tolerance or effectiveness. 

Tips for optimizing your magnesium intake

Diet remains the foundation. To meet your daily magnesium needs , focus on variety and quality. 

Foods rich in magnesium

  • Cashews , almonds, hazelnuts

  • Leafy green vegetables spinach, chard, arugula

  • Whole grains rice, pasta, wholemeal bread

  • Seafood mussels, shrimp, oysters

  • Legumes : lentils, red beans, chickpeas

  • Dark chocolate (minimum 70 % cocoa)

Impulse Nutrition Tip : Opt for natural snacks like a nut-dried fruit mix to support energy during exercise or recovery.


When should you use dietary supplements?

  • In cases of intense physical activity , repeated muscle cramps or sleep disturbances despite a careful diet.

  • If you show signs of magnesium deficiency or if your lifestyle (stress, travel, competition) increases losses.

  • To support weight loss while avoiding fatigue.

Dietary supplement : choose formulas combining magnesium with vitamin B6 or amino acids to enhance effectiveness and recovery.

Incorporating magnesium into your sports routine: practical advice

  • Spread your magnesium intake throughout the day (morning/evening) to optimize absorption.

  • Increase intake before a period of intense physical exertion or when preparing for a competition.

  • Do not wait for cramps to appear. : anticipate thanks to a routine adapted to your daily magnesium needs .

  • Ensure a balance with other vitamins and minerals Potassium, calcium, zinc. Supplement your routine with multivitamins , for example. 

  • Take magnesium with a meal to limit the risk of digestive irritation.

  •  Magnesium can also be partly supplied by a recovery drink .

Conclusion

Magnesium is a key ally for athletes It plays a key role in performance , supports recovery , helps manage stress, optimizes sleep, and reduces the risk of muscle cramps . Because magnesium requirements increase with physical activity , it is crucial to ensure sufficient intake by combining a rich diet and, if necessary, appropriate supplementation .

Relying on quality solutions, based on magnesium bisglycinate , means choosing performance without compromising on health.

Impulse Nutrition is committed to offering high-quality active ingredients to support every athlete in their quest for progress and well-being.


Optimize your routine, take care of your body, and achieve your goals with a simple, yet remarkably effective ally: magnesium.

Associated product

Magnesium Bisglycinate

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