When you’re shopping for a magnesium supplement, it’s easy to get confused over the seemingly endless forms of magnesium available. Magnesium glycinate and magnesium bisglycinate are good examples. They have similar names, but are these forms of magnesium the same?
In this article, we compare magnesium glycinate vs bisglycinate and explain what they are and whether they’re the same thing.
Key Takeaways:
Magnesium glycinate and magnesium bisglycinate are the same compound — bisglycinate simply indicates that the magnesium is chelated with two glycine molecules.
This chelated form is among the best-absorbed and most gentle magnesium supplements available, making it ideal for daily use.
Both names are used interchangeably on supplement labels, knowing this saves you from confusion (and unnecessary product switching).
The key benefits of this form include support for sleep, stress response, muscle relaxation, and cortisol management.
As always, consult with your healthcare provider before starting any new supplement or nutrition program, especially if you are pregnant, nursing, taking medication, or have a medical condition.
In This Article:
- Are Magnesium Glycinate and Bisglycinate the Same Thing?
- Why Are There Two Names on Labels?
- Benefits of Magnesium Glycinate / Bisglycinate
- Who Should Take Magnesium Glycinate?
- How to Choose a Magnesium Glycinate Supplement
Are Magnesium Glycinate and Bisglycinate the Same Thing?
Yes, magnesium glycinate and magnesium bisglycinate are essentially the same compound and are often used interchangeably on supplement labels.
Magnesium glycinate is the name for a compound made of one magnesium molecule combined with two molecules of the amino acid glycine.
Magnesium bisglycinate is the more chemically precise term, as it describes the two glycine molecules bonded to the one magnesium molecule. Since it’s simpler and shorter, “glycinate” is more commonly used on supplement labels.
Why Are There Two Names on Labels?
The two names exist because the supplement industry uses both the common name (glycinate) and the more precise chemical name (bisglycinate) interchangeably.
While this can be confusing to those shopping for magnesium products, this practice is quite common in the supplement industry.
Magnesium bisglycinate is the more accurate of the two names, but since they indicate the same compound, supplement manufacturers are allowed to use both on magnesium product labels.
Benefits of Magnesium Glycinate / Bisglycinate
Magnesium glycinate is a chelated form of magnesium. Chelated nutrients are bound to amino acids or other compounds in order to improve absorption. The chelation process can also reduce the risk of side effects, like bloating and diarrhea, and is overall gentler on the stomach than other forms of magnesium, like magnesium citrate.*
Research has linked the benefits of magnesium supplements to better sleep, stress response, and healthy blood sugar levels, among other areas of wellness.
Keep in mind that magnesium glycinate hasn't been studied as extensively as some other forms like oxide and citrate, so most of the research below applies to magnesium supplements broadly.
1) May Promote Healthy Blood Sugar and Blood Pressure Levels
Magnesium plays important roles in blood sugar and blood pressure regulation. It’s needed for the function of insulin, the hormone that helps blood sugar get into your cells where it can be used for energy. It also promotes the widening of blood vessels, which helps maintain healthy blood pressure levels.
Studies show that taking magnesium supplements, like magnesium glycinate, may benefit people with elevated blood sugar and blood pressure levels. A 2025 review found that magnesium supplements reduced fasting blood sugar and diastolic blood pressure (the bottom number in a blood pressure reading) in people with type 2 diabetes.
Another 2025 meta-analysis supported the beneficial effect of magnesium on lowering blood pressure among populations with hypertension.
2) May Improve Sleep
A magnesium glycinate supplement may be a worthwhile option if you have trouble sleeping.
Magnesium is needed for the activation of gamma-aminobutyric acid (GABA), a neurotransmitter that helps you fall and stay asleep. It’s also involved in the production of melatonin, which regulates your sleep–wake cycle.
Magnesium glycinate may be especially helpful for people who have trouble sleeping, like those with insomnia. A 2025 study found that people who took magnesium bisglycinate supplements modestly improved insomnia severity in adults reporting poor sleep quality.
Additionally, research shows that people with the highest dietary magnesium intake from both food and supplements are more likely to report better sleep quality and longer sleep duration.
3) May Support a Healthy Stress Response
Maintaining optimal magnesium levels is essential for a healthy stress response. Magnesium helps regulate neurotransmitters involved in your stress response and the release of cortisol, also known as the “stress hormone.”
In fact, having low magnesium levels may make you more prone to higher stress levels. A 2026 study found that people with low dietary magnesium intake reported higher subjective stress levels than people who consumed more magnesium in their diets.
Magnesium supplements, including magnesium glycinate, may also help reduce symptoms of anxiety.
4) May Improve Headache Symptoms
If you get headaches often, you may want to take a magnesium supplement.
Magnesium regulates inflammation, improves blood flow in the brain, and is needed for nerve function, making it important for overall brain health. Studies show that people who experience frequent headaches tend to have lower blood levels of magnesium than people who don’t.
Though there’s more research on other forms of magnesium, like magnesium oxide, for headache prevention, increasing your magnesium levels by taking a highly bioavailable form of magnesium, like magnesium glycinate, may improve headache frequency and severity.
Who Should Take Magnesium Glycinate?
Magnesium glycinate supplements may benefit many people, including those dealing with stress, frequent headaches, poor sleep, and anxiety symptoms.
Magnesium glycinate is gentler on the stomach than other forms of magnesium, like magnesium oxide and magnesium citrate, which are more likely to cause side effects, like diarrhea and stomach discomfort. For these reasons, this form of magnesium is a good option for people with sensitive stomachs.
It’s also absorbed more efficiently than many common forms of magnesium, such as magnesium oxide. If you want to get the most out of your supplement, it’s best to choose a product such as 1st Phorm Magnesium, which contains several forms of bioavailable magnesium, including magnesium bisglycinate.
How to Choose a Magnesium Glycinate Supplement
When shopping for a magnesium supplement, prioritize products where magnesium glycinate or magnesium bisglycinate is featured as a primary form of magnesium.
Some products contain just magnesium glycinate, while others combine glycinate with additional forms to provide a broader range of benefits. Multi-form blends can be a strong daily option, especially when they include glycinate alongside other well-studied forms.
Daily magnesium needs vary by age and sex, but most adults are recommended to consume between 310 and 420 milligrams of magnesium per day from food and supplements combined. For personalized dosing — especially if you're taking magnesium with a specific goal in mind, like supporting sleep or stress response — talk with your healthcare provider, and always follow the directions on your product label.
Conclusion
Magnesium glycinate and magnesium bisglycinate are the same thing and can be used interchangeably.
Adding a magnesium glycinate supplement to your routine may help support sleep, stress response, and overall magnesium intake, but as with any supplement, quality and consistency matter most.
If you're looking for a convenient, well-formulated option, consider 1st Phorm Magnesium, which is a blend featuring magnesium bisglycinate alongside other bioavailable forms, designed for daily use. You can also explore the full lineup in the nighttime supplements collection.
Frequently Asked Questions
Is magnesium glycinate the same as magnesium bisglycinate?
Yes, they are the same thing.
Which is better: magnesium glycinate or bisglycinate?
They are the same compound. Magnesium glycinate is a highly absorbable form of magnesium, making it a good choice for an everyday supplement.
What is magnesium bisglycinate good for?
Magnesium glycinate supplements may benefit sleep, blood sugar, blood pressure, headaches, and stress.
Can I take magnesium glycinate every night?
Yes, magnesium supplements are generally considered safe to take daily in recommended amounts.
What is the difference between magnesium glycinate and magnesium citrate?
They are different compounds. Magnesium glycinate is magnesium combined with the amino acid glycine, while magnesium citrate is magnesium combined with citric acid.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
