The downside of endurance exercise

Endurance exercise has many benefits, including weight management, improved mental and physical health and increased vitality.24,25 So how can something that is so good for you, possibly cause you harm? Over the long-term, exercise can deplete your body’s magnesium content and this, coupled with an insufficient intake, can lead to a magnesium deficiency.8

There are a few mechanisms involved in exercise-related magnesium depletion:
1) Decreased intake in the diet – people who are involved in weight class and body conscious sports such as ballet, gymnastics, wrestling or diving may not be taking in enough magnesium due to their dietary restrictions.26,27
2) Increased usage by the body – more magnesium is used by the body to produce energy, contract muscles etc. so physically active people need more magnesium than inactive people.28,29
3) Increased excretion – exercise can increase the loss of magnesium and other minerals through sweat, urine and the shedding of cells.29,30

As magnesium is critical for the proper functioning of every organ in your body,3 it is vitally important that you ensure an adequate intake of magnesium, especially if you are exercising regularly.18 You can do this either through your diet or by taking a magnesium supplement.

Magnesium and exercise

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