Magnesium Glycinate vs Citrate: What’s the Difference?
Magnesium Glycinate vs Citrate
What’s the Difference?
Compare two widely used forms of magnesium, including their chemical characteristics, elemental magnesium content, gastrointestinal tolerance and common reasons people consider each option.
Updated August 2026 Reviewed by MyVitalChoice Editorial TeamMagnesium Glycinate vs Citrate: The Main Difference
Both magnesium glycinate and magnesium citrate can provide supplemental magnesium, but they differ in the compounds they are bound to and in how they are commonly tolerated and used.
Magnesium Glycinate
Magnesium glycinate is magnesium bound to glycine, an amino acid. It is commonly selected by people who prefer a chelated form and is often discussed in relation to gastrointestinal tolerability.
Magnesium Citrate
Magnesium citrate is magnesium bound to citric acid. It is widely available and is also used in some products because citrate salts can have an osmotic effect in the gastrointestinal tract.
Magnesium Glycinate vs Citrate
The two forms share the same essential mineral but differ in the compound magnesium is bound to, which can influence formulation, tolerability and common use.
| Feature | Magnesium Glycinate | Magnesium Citrate |
|---|---|---|
| Chemical form | Magnesium bound to glycine | Magnesium bound to citric acid |
| Formulation type | Chelated magnesium form | Organic magnesium salt |
| Gastrointestinal tolerance | Often selected when gastrointestinal tolerance is an important consideration. | May have a greater stool-softening or laxative effect in some individuals, particularly at higher doses. |
| Common availability | Widely available | Very widely available |
| Common reason for selection | Frequently chosen by people looking for a chelated form with good tolerability. | Frequently chosen as a general magnesium supplement and in some products intended to support bowel regularity. |
| Elemental magnesium | Depends on the specific formulation and serving size. | Depends on the specific formulation and serving size. |
| Best choice? | Neither is universally better. The appropriate choice depends on individual needs, tolerance, dose, medications and professional guidance. | |
What Is Magnesium Glycinate?
Magnesium glycinate is a form of supplemental magnesium in which magnesium is associated with glycine, an amino acid naturally present in the body and in protein-containing foods.
Magnesium combined with glycine
Magnesium glycinate is commonly described as a chelated form of magnesium. In chelated mineral supplements, the mineral is associated with an organic molecule — in this case, the amino acid glycine.
This chemical form is one of several ways magnesium can be delivered in a dietary supplement. Other forms use compounds such as citrate, oxide, chloride or malate.
Why do people choose magnesium glycinate?
One of the main reasons magnesium glycinate is commonly considered is gastrointestinal tolerance. Compared with some magnesium salts, it is generally less associated with a laxative effect.
However, tolerance varies between individuals and also depends on the amount of magnesium consumed, the formulation and other ingredients in the supplement.
The amount of magnesium glycinate in a product is not the same as the amount of elemental magnesium it provides. When comparing supplements, check the label for the actual amount of magnesium per serving.
What Is Magnesium Citrate?
Magnesium citrate is a form of supplemental magnesium in which magnesium is combined with citric acid, an organic acid that occurs naturally in the body and in many foods.
Magnesium combined with citric acid
Magnesium citrate is an organic magnesium salt formed from magnesium and citric acid. It is widely used in dietary supplements and is available in capsules, tablets, powders and liquid formulations.
Like magnesium glycinate, citrate is only one of several compounds used to deliver magnesium. The compound influences properties such as solubility, formulation and gastrointestinal effects.
Why do people choose magnesium citrate?
Magnesium citrate is widely available and is commonly used as a general source of supplemental magnesium. Citrate salts are relatively soluble, which makes this form useful in a variety of supplement formulations.
Magnesium citrate can also draw water into the intestine. Because of this osmotic effect, it may soften stools or produce a laxative effect, particularly at higher amounts.
A stronger gastrointestinal effect does not necessarily mean that a supplement provides more usable magnesium. Dose, formulation and individual tolerance should be considered separately.
Magnesium Glycinate or Citrate: Which One Should You Choose?
There is no universal winner. The better choice depends on why you are considering a supplement, how your digestive system responds, the amount of elemental magnesium provided and your individual health needs.
Magnesium Glycinate
Glycinate may be worth considering when gastrointestinal tolerance is an important factor and you do not specifically want the stool-softening effect associated with some magnesium salts.
You prefer a chelated magnesium form.
You are particularly concerned about gastrointestinal tolerability.
You do not want to select a magnesium supplement primarily for its effect on bowel movements.
Magnesium Citrate
Citrate may be worth considering when you want a widely available supplemental form and its gastrointestinal effects are appropriate for your individual situation.
You prefer a widely available magnesium form.
A potential stool-softening effect is not undesirable for you.
You tolerate citrate-containing supplements well.
Look beyond the name on the front of the bottle
If you are simply comparing magnesium supplements, the word “glycinate” or “citrate” should not be your only consideration. Compare the complete product.
How much magnesium does each serving actually provide?
How many capsules, tablets or scoops make one serving?
Review fillers, allergens and additional active ingredients.
Consider how your digestive system responds to the product.
Look for clear labeling and independent quality testing when available.
Compare price using the actual serving and magnesium amount.
Magnesium Glycinate vs Citrate: Frequently Asked Questions
Quick answers to common questions when comparing these two forms of supplemental magnesium.
Is magnesium glycinate better than magnesium citrate?
Not necessarily. Neither form is universally better. Magnesium glycinate may be preferred when gastrointestinal tolerance is a priority, while magnesium citrate may be appropriate for people who are comfortable with its potential effect on bowel movements.
The best choice also depends on elemental magnesium content, serving size, individual tolerance, medications and health status.
Which form is gentler on the digestive system?
Magnesium glycinate is often selected when gastrointestinal tolerance is an important consideration. Magnesium citrate can draw water into the intestine and may produce looser stools in some people.
Individual responses vary, and gastrointestinal effects can also depend on the amount consumed.
Which contains more magnesium: glycinate or citrate?
The name of the magnesium compound alone does not tell you how much magnesium a supplement provides. Products can contain different amounts depending on their formulation and serving size.
Compare the amount of elemental magnesium shown on the Supplement Facts panel rather than comparing only the total weight of magnesium glycinate or magnesium citrate.
Can magnesium glycinate and citrate be taken together?
Some supplements contain more than one form of magnesium. What matters is not simply the number of forms but the total amount of supplemental magnesium being consumed.
Combining products can unintentionally increase total intake, so check all supplement labels and seek professional guidance when appropriate.
Should I take magnesium glycinate or citrate at night?
There is no universal rule requiring either form to be taken at night. Timing should take into account the product directions, individual tolerance, routine and possible interactions with medications.
If you take regular medication, ask a pharmacist or healthcare professional whether magnesium needs to be separated from it.
Want to Learn More About Magnesium?
Glycinate and citrate are only two of the many forms of magnesium available in foods and supplements. Our complete guide explores the mineral in greater depth.
What magnesium does in the body
Different forms of supplemental magnesium
Magnesium-rich foods
How to read a magnesium supplement label
Safety and medication considerations
Frequently asked questions
References
Key sources used to support the educational information in this comparison.
NIH Office of Dietary Supplements
Magnesium: Fact Sheet for Health Professionals. Overview of magnesium forms, absorption, dietary intake, safety and medication interactions.
View source →Lindberg et al.
Comparison of magnesium citrate and magnesium oxide with respect to solubility and gastrointestinal absorbability.
View study →Walker et al.
Clinical comparison of magnesium citrate with other magnesium preparations, including assessment of bioavailability.
View study →Schuette et al.
Study evaluating magnesium diglycinate absorption in comparison with magnesium oxide in patients with intestinal resection.
View study →
Looking for More Than One Form of Magnesium?
If you are comparing magnesium glycinate and citrate but prefer a supplement that combines multiple magnesium forms, Magnesium Breakthrough is one option you may want to review.
Magnesium Breakthrough
The current formula combines seven forms of magnesium, including magnesium bisglycinate and magnesium citrate, in a single product.
Includes glycinate and citrate Two of the magnesium forms discussed in this comparison.
Multi-form formula Combines several magnesium compounds rather than relying on a single form.
Clear supplement labeling Review the current elemental magnesium amount and serving information on the official product label.
Product formula, price, availability and purchasing conditions can change. Confirm current information on the official website.
Does everyone need a multi-form magnesium supplement?
No. A product containing several forms of magnesium is not automatically superior to a well-formulated single-form supplement. Your dietary intake, elemental magnesium dose, tolerance, health status and reason for supplementation remain important considerations.