Magnesium for better performance in CrossFit

magnesium for crossfit

Magnesium is one of the most important minerals for any athlete, but especially for those who practice CrossFit. Its role in performance, recovery and mental well-being makes it an almost mandatory supplement in high intensity workouts.

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Why is magnesium key in CrossFit?

During a WOD, multiple body systems are activated: muscular, nervous, metabolic... and magnesium is directly involved in all of them.

Main benefits:

  • Prevents cramps and muscle fatigue: Magnesium regulates muscle contraction and relaxation, preventing failure due to overload.
  • Improves recovery and sleep: It facilitates muscle regeneration and promotes deep sleep, crucial for day after day performance.
  • Increases energy: It is involved in the production of ATP, the "gasoline" of the cells.
  • Regulates the nervous system: Helps to maintain calm and focus in times of high pressure.
  • Reduces inflammation: Especially useful after intense sessions or cumulative training phases.

In addition, athletes lose a lot of magnesium through sweatwhich increases the risk of deficiency, even if you eat a healthy diet.

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Where to find magnesium naturally?

Although supplementation may be necessary for high performance athletes, it is always advisable to cover part of the needs with magnesium-rich foods.

These are some of the best sources:

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Green leafy vegetables

These vegetables concentrate magnesium thanks to chlorophyll, whose structure contains this mineral.

  • Spinach
  • Swiss chard
  • Kale (kale)

Fruits and vegetables

They provide magnesium along with potassium, fiber and antioxidants.

  • Avocado
  • Banana
  • Figs
  • Edamame

Nuts and seeds

They are very dense in magnesium: a small amount already covers a good percentage of your daily requirements.

  • Almonds
  • Cashew nuts
  • Pumpkin seeds
  • Sesame seeds

Cocoa and dark chocolate

Pure cocoa (minimum 85%) is an excellent source.
In addition to magnesium, it provides theobromine, which improves mood.

Whole grains and legumes

Rich in magnesium, fiber and vegetable proteins. Very useful for those who follow a more plant-based diet.

  • Oats
  • Brown rice
  • Chickpeas
  • Lentils

What if I still don't make it?

It is common that athletes do not meet their needs through diet alone, especially in phases of demanding training.

That's where supplementation can help.

To find the best options, you can consult our CrossFit supplements recommended, which are designed to enhance your performance and recovery."

There are many forms of magnesium on the market: oxide, citrate, chloride, etc. But not all of them are well absorbed and do not reach the tissues where they are really needed.

magnesium in crossfit

Types of magnesium supplements

Not all magnesiums are the same.

Depending on their form, they are absorbed differently and act on different body functions. These are the most effective:

Magnesium type

Features

Recommended for

Bisglycinate

High absorption, chelated form, very tolerable

Cramps, anxiety, insomnia, insomnia

Malate

High bioavailability, energizing, no laxative effect

Chronic fatigue, muscle aches and pains

L-Acetyl Taurate

Reaches the brain, regulates neuronal activity

Stress, migraines, mental health

Citrate

Good absorption, but may cause laxative effect.

Occasional constipation

Chloride

Well absorbed, aids digestion

Stomach acidity, digestive support

Rust

Low absorption, cheap and common

General uses, but not very effective

Sulfate

It is used more in baths (Epsom salts) than orally.

Topical muscle relaxation

Lactate

Gentle on the stomach, moderate absorption

People with sensitive stomachs

Threonate

High brain affinity, cognitive enhancement (advanced form)

Memory, concentration

Taurate

Similar to acetyl-taurate, helps the heart and nervous system.

Cardioprotection, anxiety

Carbonate

Needs acid to be absorbed, may cause gas

Occasional use with meals

Which are the best?

For sports performance and mental healththe best are:

Bisglycinate, Malate, L-Acetyl Taurate and Threonate (although the latter is more expensive and even less used in Europe).

Belevels: the most advanced magnesium on the market

Belevels has created a unique formula with three patented forms of magnesiumhighly bioavailable and of pharmaceutical quality. It is the most complete magnesium on the market.

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Triple magnesium

With this combination of the 3 types of magnesium (to ensure that the magnesium reaches to where it is most neededmuscles, brain and heart.

  • reduce fatigue and tiredness,
  • improve the recovery and the rest,
  • to promote the proper functioning of the nervous systemcardiac and cerebral.

Magnesium L-Acetyl Taurate (ATA Mg®)

It is the better shape for the brain and nervous system. It increases magnesium levels in the brain even in small doses and helps to calm neuronal hyperactivity because it is able to cross the blood-brain barrier. This type of magnesium is highly available.
✅ Ideal for: stress, anxiety, migraines, insomnia and mental fatigue.

Magnesium Bisglycinate (Albion®)

It has a high intestinal absorption and is very well tolerated, even by sensitive stomachs.
It reduces cramps, improves rest and helps in states of anxiety or depression. In addition, does not alter intestinal healthkey in athletes.
Ideal for: athletes, anxiety, insomnia, muscle cramps.

Magnesium Malate (Albion®)

It is easily absorbed and no laxative effectunlike citrate or oxide. It provides energy and relieves muscle pain and chronic fatigue.
✅ Ideal for: people with persistent fatigue, fibromyalgia, anxiety or muscular pain.

Vitamin B6 (Quali®-B): a plus for absorption

The formula is completed with vitamin B6 (DSM®), which is a high quality enhances magnesium absorption and is involved in more than 100 metabolic processes, including muscle and nerve function.

Contains no undesirable extra ingredients

Such as colorants or sweeteners.

Other magnesium brands

Other options are also available on the market.

My Protein

Pros

  • is economical

Cons

  • contains ingredients that are not as clean
  • does not include B6 which aids absorption
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Natural elements

Pros

  • is economical
  • combines 5 types of magnesium
  • contains no unwanted extra ingredients

Cons

  • the capsule is large and may be difficult to swallow
  • does not include B6 in its formulation, which aids absorption.
Magnesium Complex - Premium: From...
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In addition to magnesium, other supplements, such as collagen can be very beneficial for joint and connective tissue recovery after intense sessions, helping to maintain your CrossFit performance.

What do users think about taking Magnesium for CrossFit?

The opinions and experiences of people in the community about taking magnesium for CrossFit vary, but in general they highlight a few important points:

  • Perceived benefits: Many users report improved sleep quality, muscle recovery, and reduced cramping. Some mention that magnesium helps them relax and sleep better, which is key for recovery in intense workouts such as CrossFit.
  • Magnesium forms: People use various forms, highlighting:
  • Magnesium glycinate: Best absorbed and used to sleep and relieve cramps.
  • Magnesium citrate: Some take high doses (such as 3000 mg daily) and notice improvements in sleep and recovery, although some caution that very high doses may cause side effects such as diarrhea.
  • ZMA (zinc, magnesium and vitamin B6): Popular for promoting sleep and recovery, with some experiencing vivid dreams.
  • Dosage and precautions: Doses vary widely, from 200 mg to more than 3000 mg in cases of deficiency or very intense training. Many advise starting with moderate doses and adjust according to how each individual feels, as high doses may cause adverse effects such as diarrhea or gastrointestinal discomfort.
  • Magnesium deficiency: Some people believe or feel that they may be deficient, especially if they follow restrictive diets or train very hard. Deficiency may manifest itself in insomnia, cramps or muscle discomfort.
  • Cost and choice of supplement: Some comment that good quality magnesium can be expensivebut with options such as magnesium glycinate or citrate, the results may be better. Others mention that cheap supplements (such as magnesium oxide) are not always effective or well absorbed.
  • Caution: It is important not to overdose and to consult with a health professional, especially if you have medical conditions or take other supplements or medications.

In summary, most people who train intensively as in CrossFit find that magnesium can be an important aid in improving sleep and recovery.but they recommend taking it with caution and adjusting the dosage according to individual needs.

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Anabel Avila

Anabel Avila

I am Anabel AvilaI have a degree in Business Administration, personal trainer, sports nutritionist.
In 2014 I discovered the CrossFit since 2014 and since then, I have created more than 700 videos about this sport on my YouTube channel.
Since 2015, I have been covering CrossFit Games and I have attended in person at three editionsparticipating as accredited Spanish media.
I have had the opportunity to collaborate with leading brands such as Nike, Velites, Reebok and Under Armour.

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