What magnesium is good for: desirable and side effects

Magnesium is an essential mineral that plays a key role in many bodily functions. A sufficient supply is essential for the proper functioning of the muscles, nervous system, bones and heart. In this article, we will look in detail at the importance of magnesium, its desirable effects on the human body, optimal dosage and also highlight the possible side effects associated with excessive intake.

Article content:

• What and why is magnesium important?
• Positive effects of magnesium
• Recommended daily doses and sources of magnesium
• Side effects and risks associated with excessive magnesium intake

What is magnesium important for and why?

A key cofactor

Magnesium serves as a cofactor for more than 300 enzymatic reactions in the body. These reactions include protein synthesis, energy production (ATP), carbohydrate and fat metabolism, and electrolyte balance. Without sufficient magnesium, many of these vital processes would not run optimally.

Supporting muscle and nerve activity

• Muscle contraction and relaxation: magnesium is involved in the proper function of muscle fibres. It helps muscles to contract while helping them to relax, preventing muscle spasms.
• Nerve signalling: the mineral supports the proper function of nerve cells and helps in the transmission of nerve impulses, which is essential for the coordination of movements and overall nerve activity.

Cardiovascular health

Magnesium has a positive effect on the cardiovascular system. It helps maintain normal heart rhythms, regulates blood pressure and contributes to the stability of blood vessels. Its sufficient intake can help prevent cardiovascular disease.

Bone and metabolic support

The skeletal system is also dependent on magnesium, which, together with calcium and vitamin D, promotes bone mineralisation. Magnesium also affects energy metabolism, which is crucial for maintaining vitality and proper body function.

Positive effects of magnesium

Prevention of magnesium deficiency

Many people in modern society suffer from magnesium deficiency due to improper diet, high intake of processed foods and stress. Adequate magnesium intake from food or supplements helps prevent deficiency syndrome, which can be associated with fatigue, muscle cramps, irritability or arrhythmias.

Improving sleep and relaxation

Studies suggest that magnesium may help improve sleep quality. Its calming effects on the nervous system help with relaxation, which can be especially beneficial for people suffering from insomnia or stress.

Supporting digestion and regulating metabolism

Magnesium contributes to the normal function of the digestive system and can help prevent constipation. It is also involved in carbohydrate and fat metabolism, which is important for maintaining energy balance and optimal functioning of the body.

Relieving migraines and headaches

Some studies suggest that magnesium supplements may help reduce the frequency and intensity of migraines and headaches. It is anti-inflammatory and affects neurotransmitters, which may help to alleviate symptoms.

Recommended daily allowances and sources of magnesium

1. Food sources of magnesium

Magnesium occurs naturally in many foods, including:

• Leafy vegetables: spinach, kale
• Nuts and seeds: almonds, cashews, pumpkin seeds
• Whole grains: brown rice, oats
• Legumes: beans, lentils
• Fish and seafood: some types of fish contain magnesium in reasonable amounts

2. Recommended daily allowance

According to scientific recommendations, the daily requirement for magnesium varies according to age, gender and lifestyle. For example:

• Adult males: approximately 400-420 mg/day
• Adult women: around 300-320 mg/day (this may increase if pregnant or breastfeeding)

It is important to note that individual needs may vary, so it is advisable to consult a physician or nutritionist for optimal dosage.

3. Dietary supplements

In addition to diet, magnesium is also supplemented in the form of supplements. The most commonly used forms include:

• Magnesium citrate: a well absorbed form, also suitable for aiding digestion
• Magnesium glycinate: gentler on the stomach, ideal for people with sensitive digestive tracts
• Magnesium oxide: less absorbable but often used due to availability and lower cost

When choosing a supplement, it is important to take into account individual needs, health conditions and possible interactions with other medications.

Side effects and risks associated with excessive magnesium intake

Gastrointestinal discomfort

The most common side effect of excessive magnesium intake, especially from supplements, is diarrhea. This is because magnesium has a mild laxative effect, which can lead to indigestion, bloating or nausea in some individuals.

Risk of hypermagnesaemia

In healthy individuals, the risk of hypermagnesaemia (excessive magnesium in the blood) is very low, as the kidneys can excrete the excess mineral efficiently. However, in people with impaired kidney function, magnesium can accumulate, which can lead to side effects such as:

• Slowing of the heart rate.
• Decrease in blood pressure
• Respiratory disturbances

Drug interactions

Magnesium may interact with certain medications, which may affect their effectiveness or increase the risk of side effects. Examples include:

• Antibiotics: some tetracyclines and fluoroquinolones may have reduced effectiveness when given concomitantly with magnesium.
• Heart and high blood pressure medications: ACE inhibitors or diuretics may interact with magnesium.

Therefore, it is advisable to consult a physician when taking magnesium supplements, especially if you are already taking any medications on a regular basis.

Exceeding the recommended dose

Although magnesium is an essential mineral, excessive intake - especially in the form of supplements - can have negative effects. Exceeding recommended doses without medical supervision is not recommended, as prolonged elevated magnesium levels can negatively affect the functioning of the nervous and cardiovascular systems.

Conclusion

Magnesium is an indispensable mineral with many beneficial effects on human health. It supports muscle and nerve function, contributes to cardiovascular health, helps in energy production and is crucial for proper bone function. Although magnesium deficiency is common, especially with an inadequate diet, care must be taken to ensure proper dosage. Excessive magnesium intake, especially from supplements, can lead to unwanted gastrointestinal problems or more serious complications in individuals with impaired kidney function.

We recommend that you always consult a specialist to help you determine the optimal dose and choose the appropriate form of magnesium supplement for your health and lifestyle. A suitable diet rich in magnesium should be the basis for preventing deficiency and maintaining overall health.

FAQs - Frequently asked questions about magnesium

Here you will find answers to the most common questions about magnesium, its effects and possible side effects.

Does magnesium cause diarrhea?

Yes, especially in higher doses and with some forms (oxide, sulfate). More sparing variants such as bisglycinate or citrate minimize this effect.

What is the difference between magnesium and magnesium?

None, they are the same. "Magnesium" is the international name, "magnesium" is the Czech equivalent.

What are the effects of magnesium?

It supports the muscles, nervous system, heart, reduces stress, improves sleep and helps with metabolism and energy.