Magnesium Glycinate vs. Citrate: Which is Right for You?

Magnesium comes in many different forms, and two of the most commonly used are magnesium glycinate and magnesium citrate. While both provide the same essential mineral, they are absorbed and used slightly differently in the body.
 
This article explores how magnesium glycinate and magnesium citrate compare, including how they are made, how they are typically used, and what factors may help determine which option best suits individual needs and preferences.

Magnesium is an essential mineral that supports many normal processes in the body.

When it comes to supplements, the key difference isn’t magnesium itself, but the form it is bound to. Different forms can affect how well magnesium is absorbed and how it works in the digestive system.

See our Magnesium buyer's guide for more information on all of the different magnesium types. In this case, we're honing in on specifically magnesium glycinate, and magnesium citrate.

Magnesium glycinate is a form of magnesium that is bound to the amino acid glycine. This chelated structure is designed to improve stability and absorption in the digestive tract.
 
Because of this, magnesium glycinate is often described as a well-tolerated and bioavailable form of magnesium.
 
This form is commonly included in supplements intended for regular, ongoing use, particularly for those who are sensitive to digestive side effects from other magnesium forms.

Key Benefits of Magnesium Glycinate

Magnesium glycinate is often chosen for its gentle nature on the digestive system. It is commonly associated with supporting normal muscle and nervous system function and is frequently included in evening or nighttime routines due to its tolerability.
 
The glycine component is also involved in normal neurotransmitter activity, which is one reason this form is often selected by people looking for a magnesium option that fits into relaxation-focused routines.

How to Take Magnesium Glycinate (tablets, powder, dosage)

Magnesium glycinate is available in tablets, capsules, and powder formats. The appropriate dosage varies depending on the product, the amount of elemental magnesium provided, and individual needs.
 
It is important to follow label directions and consider total daily magnesium intake from all sources.
Some people prefer to take magnesium glycinate with food to support digestion, while others include it as part of an evening routine.

Considerations

Magnesium glycinate is generally well tolerated. However, as with any magnesium supplement, higher intakes may cause digestive symptoms such as loose stools or stomach discomfort in some individuals.
 
People with kidney conditions, those taking certain medications, or those with specific health concerns should seek advice from a healthcare professional before starting magnesium supplementation.

What is Magnesium Citrate?

Magnesium citrate is a form of magnesium bound to citric acid. This combination increases solubility, making magnesium citrate one of the more readily absorbed forms of magnesium in the digestive system.
 
Because of its solubility, magnesium citrate is commonly used in both general magnesium supplements and formulations designed to support digestive regularity.

Key Benefits of Magnesium Citrate

Magnesium citrate is often selected for its relatively high absorption and its effect on bowel function. It is commonly associated with supporting normal muscle function, energy metabolism, and digestive activity.
 
Due to its osmotic effect in the intestines, magnesium citrate is sometimes used by individuals who are looking to support bowel regularity.

How to Take Magnesium Citrate (tablets, powder, dosage)

Magnesium citrate is available in tablets, capsules, powders, and liquid forms. Powder and liquid formats are often mixed with water and can allow for flexible dosing.
 
As with other forms of magnesium, dosage should be based on product instructions and individual tolerance. Starting with a lower dose and gradually increasing may help reduce the likelihood of digestive discomfort.

Considerations

Because of its effect on the digestive system, magnesium citrate is more likely than some other forms to cause loose stools or diarrhoea, especially at higher doses.
 
This form may not be suitable for people with sensitive digestion Medical advice is recommended for people with kidney conditions or those taking medications that affect mineral balance. Always seek advice from your health professional prior to starting supplementation if you have concerns.

Absorption and Bioavailability

Both magnesium glycinate and magnesium citrate are considered to have good bioavailability compared to some other magnesium forms.
 
Magnesium glycinate is often noted for its stable absorption and gentle digestive profile, while magnesium citrate is highly soluble and readily absorbed.

Effect on Sleep and Relaxation

Magnesium glycinate is commonly chosen for evening use due to its tolerability and association with relaxation-focused routines. Magnesium citrate can also be used at night, but its digestive effects may make it less suitable for some people before bed.
 
Neither form is a sleep medication, but both contribute to normal nervous system and muscle function, which are part of the body’s broader relaxation processes.

Digestive Effects

Magnesium citrate is more likely to have a laxative effect and is often used by people looking to support bowel regularity. Magnesium glycinate is generally less likely to affect bowel movements and is often preferred by those with sensitive digestion.

Cost and Availability in Australia

Both magnesium glycinate and magnesium citrate are widely available in Australia through pharmacies, supermarkets, and health food stores, including retailers such as Chemist Warehouse, Coles, and Woolworths. Pricing can vary depending on brand, dosage, and format.

Factors to Consider: Age, Health Goals, Digestive Sensitivity

Choosing between magnesium glycinate and magnesium citrate often depends on individual goals and tolerance. People with sensitive digestion may prefer magnesium glycinate, while those looking to support bowel regularity may consider magnesium citrate.
 
Age, dietary intake, activity level, and overall health can also influence which form may be more suitable.

Combining Magnesium Types: Is it Safe?

Some products contain multiple forms of magnesium. In general, combining forms is common in supplements, but total daily magnesium intake should be considered to avoid excessive amounts.
 
It is important to follow label directions and seek professional advice if combining multiple magnesium products or taking other mineral supplements.

Magnesium glycinate and magnesium citrate both provide essential magnesium but differ in how they are absorbed and how they affect digestion.
 
Magnesium glycinate is often chosen for its gentle profile and suitability for regular use, while magnesium citrate is commonly selected for its solubility and digestive effects.
 
Understanding these differences can help individuals make more informed choices based on their personal needs, digestive tolerance, and daily routines.

Can Magnesium Glycinate Help with Sleep?

Magnesium glycinate is often included in evening routines because it is well tolerated and supports normal nervous system and muscle function. While it is not a sleep treatment, some people prefer this form as part of a relaxation-focused routine.

Which Magnesium is Better for Constipation?

Magnesium citrate is more commonly associated with supporting bowel regularity due to its osmotic effect in the intestines. Magnesium glycinate is less likely to have a laxative effect and may be preferred by those with sensitive digestion.

Are There Any Risks with Long-Term Use?

For most people, magnesium taken at appropriate doses is well tolerated. However, long-term use should take total magnesium intake into account, and people with kidney conditions or those taking certain medications should seek medical advice.

Can I Take Magnesium with Other Supplements (e.g. Zinc Glycinate)?

Magnesium is commonly taken alongside other minerals and supplements. However, some minerals can compete for absorption, so spacing doses and following product directions may help optimise intake. A healthcare professional can provide personalised guidance.