From Muscles to Mind: The Many Roles of Magnesium

Learn why magnesium is essential for your health, which foods are rich in magnesium, and how to prevent deficiency symptoms.

3 MIN READ — 03/10/2025

Magnesium is the unsung hero of your daily life—not only does it relax your muscles, but it also promotes better sleep and boosts your energy levels. Whether you're winding down after a stressful day at work or recovering from an intense workout, your body relies on magnesium to function smoothly. Discover how this vital mineral keeps you fit and refreshed, and why it's worth paying attention to your daily magnesium intake.

What is Magnesium?

Magnesium is an essential mineral for the human body, regulating a wide range of biochemical reactions and cellular functions. It is primarily found in our bones, muscles, and soft tissues. What’s crucial to remember is that our body cannot produce magnesium on its own, making it necessary to obtain it through your diet.

Why Is Magnesium Important for the Body?

Magnesium is vital to our health because it acts as a cofactor for more than 600 enzymes. It plays a key role in protein synthesis, energy production, and nerve and muscle functions. Magnesium also helps regulate blood pressure. One of its primary functions is in cellular energy production—specifically, in generating adenosine triphosphate (ATP), the body's main energy source. Magnesium forms a complex with ATP, activating various ATP-dependent enzymes.

Magnesium Glycinate vs. Citrate: What's the Difference?

If you’re not getting enough magnesium through your diet, supplements like magnesium glycinate and magnesium citrate are two common options.

The key difference between magnesium glycinate and magnesium citrate lies in their composition and effect. Magnesium glycinate is bound to the amino acid glycine, making it well-tolerated and ideal for supporting relaxation and sleep. Glycine itself has calming effects on the nervous system, enhancing magnesium’s relaxing properties. Magnesium citrate, on the other hand, is bound to citric acid, offering high bioavailability. It’s especially useful for alleviating muscle cramps and can aid digestion due to its mild laxative effect.

Best Sources of Magnesium in Your Diet

Many foods are excellent sources of magnesium. Here’s a quick overview to help you build a balanced meal plan:

When to Take Magnesium? Tips for Proper Use

If you’re taking magnesium as a supplement, it’s best to split your intake into two doses throughout the day. But how much magnesium should you be taking? This depends on age and gender. For adolescent and adult women, the recommended daily intake ranges from 300 to 350 mg, while breastfeeding women require more, around 390 mg. Men in these age groups need between 350 and 400 mg per day. For children, the required amount varies from 80 to 310 mg, depending on age.

Magnesium Deficiency: Causes, Symptoms, and Treatment

How do you know if you’re not getting enough magnesium? Muscle cramps, particularly after a workout, are a common sign. If you exercise regularly, your body’s magnesium needs increase, making deficiency more likely. Other symptoms to watch for include:

  • Loss of appetite
  • Vomiting
  • Fatigue
  • Weakness
  • Dizziness

Magnesium Overdose: Risks, Symptoms, and What to Do

While magnesium is essential, too much of it can cause problems. Generally, your kidneys will filter out excess magnesium, but high doses can still lead to symptoms like diarrhea and other digestive issues. As always, balance is key—aim for a well-rounded diet and avoid overdoing supplements.

At a Glance

  • 01.

    Magnesium is vital for a range of biochemical processes, including energy production, protein synthesis, and nerve and muscle function. Since the body cannot produce it, magnesium must be consumed through food or supplements.

  • 02.

    A magnesium deficiency can cause symptoms like muscle cramps, fatigue, and loss of appetite. People who exercise regularly or have increased needs should ensure they’re getting enough.

  • 03.

    Magnesium supplements like glycinate and citrate offer different benefits: glycinate is best for sleep and relaxation, while citrate is useful for muscle cramps and digestive support.

Article Sources

Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. Do not exceed the indicated daily intake. Keep out of reach of children. Please inform and consult your doctor before consuming this product. Not suitable for children and adolescents under 18 years, pregnant or breastfeeding women. Refrain from taking other food supplements containing zinc. Persons taking anticoagulant medication should seek medical advice before consuming vitamin K-containing supplements.

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º Food Supplement. In combination with a healthy diet and exercise.

ª Survey on the awareness of multi-nutrient powders with 211 consumers aged 18 to 49 in Germany, 09/24.

↡ Survey of 527 AG1 customers after 12+ days of use, 2024. The survey was conducted on a previous version of AG1’s continually evolving formulation. The survey results can be transferred to the current version of the formula due to no or scientifically negligible changes in supporting nutrients. Vitamins C, B6, B12, riboflavin, niacin, pantothenic acid, and folate help reduce tiredness and fatigue. Pantothenic acid supports mental performance. Calcium supports normal digestive enzyme function, while biotin maintains normal mucous membranes, such as the gut lining.

⧘ Compared to individual supplements typically sold in retail, such as:
Vitamin B complex, Vitamin A, Vitamin C, Vitamin E, bacterial cultures, zinc, magnesium, calcium, selenium, chromium, manganese, molybdenum, coenzyme Q10, greens powders (from sea algae like spirulina, barley leaf, wheatgrass, dandelion, spinach powder, etc.), mushroom supplements (reishi, shiitake)

‡ Survey of 144 verified customers from 12 European countries who have been taking AG1 for an average of 9 days.

Immune System

1: With vitamins A, C, B6 and B12 as well as folate, zinc, copper and selenium, AG1 contributes to the normal function of the immune system. Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise.

Energy; Metabolism

2: Vitamins C, B6, B12, riboflavin, niacin, pantothenic acid and magnesium contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue. With vitamins C, B6, B12, as well as thiamine, riboflavin, niacin, biotin, pantothenic acid, calcium, phosphorus, copper and manganese, AG1 contributes to normal energy-yielding metabolism. Magnesium contributes to electrolyte balance. Biotin, zinc and chromium contribute to normal macronutrient metabolism.

Cell Protection

3: With vitamins E and C as well as riboflavin, zinc, copper and selenium, AG1 contributes to the protection of cells from oxidative stress. Phosphorus contributes to normal function of cell membranes. Folate, Vitamin B6 and B12 contribute to normal homocysteine metabolism.

Mental Performance; Psychological Function; Nervous System

4: With pantothenic acid, AG1 contributes to normal mental performance. Zinc contributes to normal cognitive function. With vitamins C, B6, B12, B1, B3 and B7 AG1 contributes to normal psychological function and to normal functioning of the nervous system. Calcium contributes to normal neurotransmission.

Skin, Hair & Nails

5: With vitamins A, as well as riboflavin, niacin, biotin and zinc, AG1 contributes to the maintenance of normal skin. Vitamin C contributes to normal collagen formation for the normal function of skin. Vitamin B7, zinc and selenium contribute to the maintenance of normal hair. Zinc and selenium contribute to the maintenance of normal nails.

Hormonal System

6: With vitamin B6, AG1 contributes to the regulation of hormonal activity. Zinc contributes to the maintenance of normal testosterone levels in the blood. Selenium contributes to the normal thyroid function. With chromium, AG1 contributes to the maintenance of normal blood glucose levels.

Digestion

7: Calcium contributes to the normal function of digestive enzymes. Biotin AG1 contributes to the maintenance of normal mucous membranes (e.g. intestinal mucosa).

Muscles

8: With calcium and magnesium, AG1 contributes to normal muscle function.