What’s On the Shelves? Understanding Magnesium Supplements

We will discuss key facts about magnesium:

1. Why magnesium matters,

2. Which forms absorb best, and

3. What many people notice once magnesium becomes systemic

4. Learn how to make your own magnesium oil

Magnesium is one of the most important minerals in the human body, yet it is also one of the most commonly overlooked and research suggests that magnesium insufficiency is widespread in modern society, with nearly half of the population estimated to be deficient in magnesium.

It is estimated that magnesium is involved in more than 500 biochemical and enzymatic functions throughout the body, influencing:

• sleep

• muscle relaxation

• nerve signaling

• energy production

• stress response

• bowel function

• cognition

• cardiovascular health

• blood sugar balance

• recovery after exercise

• vitamin D utilization

  
  

Without adequate magnesium, the body simply does not function optimally.

Many people today are unknowingly deficient due to a combination of:

• processed food intake

• chronic stress

• alcohol use

• high sugar consumption

• depleted agricultural soils

• modern farming practices

• medications

• excessive caffeine

• intense exercise and sweating

Magnesium is also necessary for the body to properly utilize and absorb vitamin D, making it an important foundational nutrient in overall wellness.

What Is Magnesium?

Magnesium is an essential mineral and chemical element found on the periodic table as element number 12.

While that may sound like high school chemistry, it matters because magnesium participates in hundreds of critical reactions inside the human body every single day.

Much of the magnesium in the body is stored inside bones, muscles, and cells rather than circulating in the bloodstream. This is one reason magnesium deficiency can sometimes exist even when standard bloodwork appears “normal.”

Signs of Magnesium Deficiency

Low magnesium levels may contribute to:

• muscle cramps

• tight muscles

• eye twitching

• constipation

• poor sleep

• fatigue

• anxiety

• irritability

• headaches

• migraines

• poor stress tolerance

• restless legs

• heart palpitations

• brain fog

• low energy

• stiffness

• poor exercise recovery

• difficulty relaxing

Many people simply feel “wired but tired.”

Why Magnesium Forms Matter

One of the biggest sources of confusion is the enormous number of magnesium products on the shelf. Choosing cheap is not choosing wisely.

Magnesium must be attached or “bound” (known as chelated) to another compound in order for the body to transport and absorb it efficiently.

That attached compound matters when choosing your product.

For example: Magnesium glycinate is magnesium attached to glycine.

Glycine is an amino acid that has calming and nervous-system-supportive properties of its own. This is one reason magnesium glycinate is commonly used for:

• sleep

• stress

• relaxation

• nervous system support

You are not just getting magnesium. You are also getting the properties of the compound attached to it.

This is why different forms of magnesium behave differently in the body.

Understanding Elemental Magnesium

Supplement labels can be confusing.

A bottle may say: “500 mg magnesium glycinate”

However, that does not mean you are receiving 500 mg of actual magnesium.

Part of that weight comes from glycine, the amino acid attached to the magnesium.

“Elemental magnesium” refers to the actual amount of usable magnesium contained within the supplement.

This is important when comparing products and dosing.

What About Ionic Magnesium?

“Ionic magnesium” usually refers to magnesium dissolved into charged particles within a liquid solution.

Some liquid magnesium products use this terminology as a marketing feature.

While ionic magnesium may absorb well, overall product quality and the form of magnesium used are usually more important than marketing language alone.

What’s On the Shelves? Understanding the Different Forms of Magnesium

Magnesium Glycinate - bound to glycine, a calming amino acid.

Benefits:

• highly absorbable

• gentle on digestion

• calming

• excellent before bedtime

• commonly used for stress and sleep support

Less likely to cause diarrhea.

Magnesium L-Threonate (Magtein)Bound to threonic acid.

This form is unique because it appears to cross the blood-brain barrier more effectively than many other forms of magnesium.

The blood-brain barrier is a protective filtering system around the brain. Some compounds cross it more effectively than others.

Benefits:

• cognition

• focus

• memory

• mental clarity

• brain support

Often preferred in the morning.

Usually more expensive than standard magnesium forms.

Magnesium Citrate - bound to citric acid.

Benefits:

• reasonably absorbable

• commonly used for constipation support

More likely to loosen stools and cause diarrhea in higher amounts.

Magnesium Malate - bound to malic acid.

Benefits:

• muscle recovery

• energy support

• post-exercise stiffness

• muscular tension

• exercise recovery support

Popular among active individuals.

Magnesium Taurate - bound to taurine.

Benefits:

• calming

• cardiovascular support

• nervous system support

Generally gentle on digestion.

Magnesium Orotate -bound to orotic acid.

Benefits:

• often discussed for athletic performance and cardiovascular support

Usually more expensive and less commonly found in standard retail stores.

Magnesium Chloride - A well-absorbed form frequently used in:

• topical sprays

• baths

• magnesium oil

Excellent for muscle soreness, stiffness, and recovery support.

Magnesium Oxide - one of the cheapest and most common forms found on store shelves.

Benefits:

• inexpensive

• often used in constipation products

Limitations:

• poorly absorbed

• lower efficacy

• more likely to cause digestive upset and diarrhea

Many inexpensive magnesium products rely heavily on magnesium oxide because it is cheap to manufacture.

Magnesium Sulfate (Epsom Salts) Commonly used in baths and soaking.

Helpful for:

• sore muscles

• relaxation

• recovery rituals

Not typically used as a primary oral magnesium supplement.

Why Cheap Forms Matter

Not all magnesium supplements are created equally.

Some lower-cost products rely heavily on poorly absorbed inorganic forms that may not deliver the same functional benefits as better-absorbed forms such as glycinate, malate, taurate, chloride, or threonate.

Inexpensive forms are often more likely to:

• cause diarrhea

• irritate digestion

• provide lower efficacy

• deliver less noticeable results

Sometimes the cheapest product on the shelf is not actually the best value and you may wonder why you are not noticing any benefits.

Magnesium and Sleep

One of the most common things people notice once magnesium becomes systemic, with consistent use, is improved sleep quality.

Many people report:

• deeper sleep

• fewer nighttime awakenings

• easier relaxation

• calmer thoughts

• waking more refreshed

• deeper replenishment can take months in highly depleted individuals

  
  

A common approach is:

• Magnesium L-threonate (Magtein) in the morning for cognition and focus

• Magnesium glycinate in the evening for relaxation and sleep support

  This is how I use magnesium in my daily life.

• Magnesium citrate - for individuals needing additional bowel support or help with constipation

  
  

Magnesium and Exercise Recovery

Magnesium plays an important role in muscular relaxation and recovery.

People experiencing:

• post-workout soreness

• stiffness

• tight muscles

• cramping

• poor recovery

often benefit from forms such as:

• magnesium malate - used for muscular tightness, stiffness, cramping, and recovery support

• magnesium glycinate - supports muscular relaxation, nervous system calming, and overnight recovery

• topical magnesium chloride - often used in baths, magnesium oil sprays, and soaking rituals for sore muscles, tension, and physical recovery

  
  

What People Often Notice After Consistent Magnesium Use

Once magnesium levels improve over time, many people report:

• better sleep

• calmer mood

• improved stress tolerance

• increased energy

• better concentration

• fewer headaches

• reduced muscle cramps

• easier bowel movements

• less stiffness

• looser muscles and joints

• improved exercise recovery

• fewer eye twitches

• reduced “wired but tired” feelings

• smoother nervous system function

  
  

Magnesium-Rich Foods

It is important to consume magnesium-rich foods regularly rather than relying entirely on supplements.

Magnesium-rich foods include:

• pumpkin seeds

• leafy greens

• avocados

• cacao

• almonds

• cashews - learn to make your own cashew milk

• mineral-rich water

• legumes - like lentils

• dark chocolate - look for stevia sweetened brands like Lily's

  
  

Real food still matters.

Magnesium Baths and Soaks

Magnesium chloride flakes are an excellent addition to a warm evening bath, especially for:

• sore muscles

• stiffness

• tension

• stress

• exercise recovery

Add approximately 2 cups or more of magnesium chloride flakes to a comfortably warm bath and soak for 12–15 minutes. (Epsom salts may also be used and are less expensive)

After soaking, wrap yourself in a thick terry towel or robe, dim the lights, and allow the body to fully relax. Many people find this simple ritual helps facilitate a tranquil night’s sleep, waking up feeling restored, refreshed, and renewed.

Magnesium Oil: What is it?

Despite the name, magnesium oil is not actually an oil.

It is a concentrated solution made from magnesium chloride flakes dissolved into water. It is simple to make yourself and a lot less expensive.

Basic Magnesium Oil Recipe

• 1 cup magnesium chloride flakes

• 1 cup boiling distilled or purified water

Stir until dissolved and allow to cool completely before pouring into a spray bottle or glass container.

How to Use Magnesium Oil

Apply topically to:

• sore muscles

• stiff joints

• shoulders

• calves

• feet

• lower back

• 
  

It is common to experience:

• tingling

• warmth

• temporary flushing

• itching at the skin surface

This sensation usually dissipates within several minutes and often becomes less noticeable with repeated use.

Can You Take Too Much Magnesium?

Yes.

Too much magnesium, especially from supplemental forms, may cause:

• loose stools

• diarrhea

• nausea

• abdominal cramping

• lethargy

The bowel tolerance effect is one of the body’s ways of signaling excess intake.

Magnesium is generally best tolerated when taken with a small amount of food.

Final Thoughts

Magnesium may be one of the most important foundational minerals for modern health.

While no supplement replaces real food, quality sleep, movement, hydration, and stress management, magnesium can become an important part of a comprehensive wellness approach when used thoughtfully and consistently.

If you are overwhelmed by the number of magnesium products on the shelf, I carry professionally selected supplement options through my professional supplement dispensary and also offer wellness consultations for individualized guidance.

Watch for more ‘What’s on the Shelves?’ articles coming soon, where we break down common wellness products, supplements, and ingredients in practical, understandable language — including vitamin D, probiotics, electrolytes, fish oil, protein powders, collagen, sweeteners, and more.

For personalized wellness guidance, supplement support, or nutritional consultation, you may schedule a complimentary consultation here.

In good health,

Jane A. Thomas

Traditional Naturopath

Master Herbalist