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What Does Magnesium Do To Our Body?

Magnesium is an essential mineral that plays a crucial role in numerous physiological functions within the body. It is involved in over 300 enzymatic reactions, contributing to various biochemical processes. While magnesium is not a direct muscle-building supplement, it plays important roles that can indirectly support bodybuilding and athletic performance. Here are some key functions of magnesium and its relevance to bodybuilding:

Functions of Magnesium in the Body:

Energy Metabolism:

Magnesium is a cofactor for enzymes involved in the conversion of food into energy. It plays a critical role in ATP (adenosine triphosphate) synthesis, the primary energy currency of cells.

Muscle Contraction and Relaxation:

Magnesium is essential for proper muscle function, including the contraction and relaxation of muscles. It acts as a calcium antagonist, helping regulate the balance between calcium and magnesium for muscle control.

Protein Synthesis:

Magnesium is involved in the synthesis of proteins, including those responsible for muscle growth and repair. It supports the translation of genetic information into functional proteins.

Nervous System Function:

Magnesium has a calming effect on the nervous system, helping to regulate neurotransmitters and neuromuscular signals. This can contribute to better muscle control and coordination.

Bone Health:

Magnesium is a crucial component of bone tissue and works in concert with calcium and vitamin D to support bone health. It contributes to bone density and strength.

Electrolyte Balance:

Magnesium helps maintain electrolyte balance in the body, which is essential for proper muscle function, nerve transmission, and hydration.

Cardiovascular Health:

Magnesium plays a role in maintaining a regular heartbeat and supporting overall cardiovascular health. It helps relax blood vessels and may contribute to better blood flow during exercise.

Relevance to Bodybuilding:

Muscle Function and Performance:

Proper muscle function is critical for bodybuilders and athletes. Magnesium's role in muscle contraction and relaxation can contribute to better performance, coordination, and reduced muscle cramps.

Energy Production:

Magnesium is involved in the conversion of carbohydrates, fats, and proteins into energy. Athletes and bodybuilders with adequate magnesium levels may experience improved energy metabolism and endurance during workouts.

Protein Synthesis and Recovery:

Magnesium supports protein synthesis, which is essential for muscle growth and repair. It can contribute to faster recovery after intense training sessions.

Reducing Muscle Cramps:

Magnesium deficiency has been associated with an increased risk of muscle cramps. Supplementing with magnesium may help reduce the occurrence of cramps during and after exercise.

Bone Health and Injury Prevention:

While often overlooked, bone health is crucial for overall athletic performance and injury prevention. Magnesium, along with other minerals, contributes to the structural integrity of bones.

Sources of Magnesium:

Magnesium is found in various foods, including green leafy vegetables, nuts, seeds, whole grains, and fish.

Magnesium supplements are also available, and they can be a convenient way to ensure adequate intake, especially for individuals with increased magnesium needs.


The recommended daily intake of magnesium varies based on factors such as age, sex, and individual health status. For adults, the recommended dietary allowance (RDA) is typically around 310-420 mg per day.


While magnesium is essential for health, excessive supplementation can lead to magnesium toxicity. It's important to stay within recommended dosage guidelines.

Individuals with kidney problems or certain medical conditions should consult with a healthcare professional before taking magnesium supplements.

In summary, magnesium is a vital mineral that supports various physiological functions, including muscle function, energy metabolism, and protein synthesis. While it may not directly build muscle, ensuring an adequate magnesium intake can contribute to better overall performance, recovery, and muscle health, making it relevant for individuals engaged in bodybuilding and intense physical training.


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