Magnesium Malate vs Glycinate: Which One Should You Take?
Magnesium malate and magnesium glycinate are both well-absorbed forms, and both are easy on the stomach. The real difference is when and why you take them: malate is the daytime form, bound to malic acid from fruit, while glycinate is the evening form, bound to the calming amino acid glycine and the usual choice for sleep. Plenty of people take one in the morning and the other at night.
If you've narrowed your magnesium down to these two, you've already skipped the poorly absorbed forms, which is the most important step. What's left is matching the form to your day. Here's how malate and glycinate compare, side by side, and how to choose. For every other form on the shelf, our guide to magnesium has the full list.
Magnesium malate vs glycinate at a glance
| Magnesium malate | Magnesium glycinate | |
|---|---|---|
| Bound to | Malic acid, found in apples and other fruit | Glycine, an amino acid |
| Elemental magnesium | About 15% | About 14% |
| Absorption | Good (organic form) | Good (organic form) |
| On the stomach | Gentle | Gentlest of all the common forms |
| Usual time | Morning or early afternoon, with a meal | Evening, with dinner or 1 to 2 hours before bed |
| Usually chosen for | Daytime use, alongside energy support | Sleep, relaxation, sensitive stomachs |
What each one is
Magnesium malate is magnesium bound to malic acid, the natural acid that gives apples their tartness. Your cells use malate as one of the steps in turning food into energy, which is why malate is traditionally the daytime form. We cover it in depth in magnesium malate benefits.
Magnesium glycinate is magnesium bound to glycine, an amino acid your body also uses as a calming signal in the brain and spinal cord. It's the form most often recommended for evenings and sleep, and the one least likely to send you to the bathroom. You'll also see it sold as magnesium bisglycinate, which is the same idea with two glycines per magnesium.
Absorption: a near tie
Both are organic forms, and a 2021 systematic review in Nutrition concluded that organic magnesium appears to be absorbed better than inorganic forms such as oxide. That's the difference that matters most, and both of these are on the right side of it.
There's no good human trial comparing malate and glycinate head to head. You may see claims that malate is "the best absorbed" form; they usually trace back to a 2018 study in rats in which malate gave the highest blood levels of five compounds. Glycinate wasn't one of the five, so that study can't settle this comparison. For practical purposes, treat them as equally good, and choose on the other differences.
Gram for gram, they also carry almost the same amount of magnesium: about 15% for malate and about 14% for glycinate. Our breakdown of whether 500 mg of magnesium is too much shows how to turn the number on the front of the label into the amount you actually get.
Stomach comfort
Glycinate wins narrowly. It's the gentlest common form, which is a big reason it's the default for people who've had trouble with magnesium before. Malate is also well tolerated and much gentler than citrate or oxide, which both pull water into the bowel. Either one, taken with food and within the limits below, rarely causes problems.
For sleep: glycinate
If better sleep is the reason you're taking magnesium, glycinate is the usual choice. Glycine's own calming role, its gentleness, and the habit of taking it in the evening all point the same way. What the research says about magnesium and sleep, and how much glycinate people take for it, is in our article on magnesium glycinate for sleep.
Malate won't keep you awake, but it isn't built for the evening.
For daytime and muscles: malate
Malate is the conventional pick for daytime use, partly because malic acid feeds the same energy cycle magnesium supports. It has also been studied for muscle pain, though only in one small fibromyalgia trial with mixed results, so treat that as a possibility rather than a reason to choose it. If you'd simply rather take your magnesium with breakfast, malate fits naturally.
Which should you take?
- Your main goal is sleep or winding down: glycinate, in the evening.
- You want magnesium with breakfast or lunch: malate.
- You have a sensitive stomach: glycinate first; malate is a close second.
- Magnesium has made you drowsy during the day: move it to the evening, or try malate in the morning.
- You just want to stop being short on magnesium: either. The one you'll take every day is the right one.
Can you take magnesium malate and glycinate together?
Yes. A common routine is malate in the morning and glycinate in the evening. The thing to watch is your total. According to the NIH Office of Dietary Supplements, adults shouldn't take more than 350 mg of elemental magnesium a day from supplements, and that limit covers every product combined. Magnesium from food doesn't count toward it.
So if your malate gives you 100 mg of elemental magnesium and your glycinate gives you 200 mg, you're at 300 mg, which is under the limit. Add any multivitamin or other product with magnesium in it to the sum.
When to take each
- Malate: morning or early afternoon, with a meal.
- Glycinate: with dinner, or one to two hours before bed.
Consistency matters more than the exact hour. If you take medication, some of it needs to be spaced away from magnesium; our guide to the best time to take magnesium lists which ones.
Side effects and who should check first
Both are generally well tolerated. At high doses, any magnesium can cause loose stools, nausea or cramps, which is why the 350 mg supplement limit exists. Talk to your doctor before taking either if you have kidney disease, take regular medication, or are pregnant or breastfeeding.
If you're also weighing up citrate, which behaves quite differently, see how magnesium glycinate compares with citrate.
Where our Shilajit Gummy fits
Our Shilajit Gummy is a daytime gummy, so we used the daytime form: 37 mg of magnesium malate, alongside 25 mg of shilajit, 120 mg of L-theanine, 30 mg of zinc and vitamins B6 and D3. The label says one gummy a day with a meal, which slots into breakfast or lunch. If you also take a glycinate in the evening, count both toward your daily total. Every amount is printed on the jar beside its ingredient.
Frequently asked questions
Which is better, magnesium malate or glycinate?
Neither is better overall. Both are well absorbed. Glycinate suits sleep and sensitive stomachs; malate suits daytime use.
Is magnesium malate or glycinate better for sleep?
Glycinate. It's the form most often taken for sleep, and it's usually taken in the evening.
Is magnesium malate or glycinate better for anxiety?
Glycinate is the form usually chosen for relaxation, because of glycine's calming role. Neither should replace treatment for an anxiety condition; talk to your doctor if anxiety is affecting your daily life.
Can I take magnesium malate in the morning and glycinate at night?
Yes, as long as your combined total from supplements stays at or under 350 mg of elemental magnesium a day.
Does magnesium malate make you tired?
It isn't known for it, which is one reason it's the daytime form. If any magnesium makes you drowsy, move it to the evening.
Which form has more magnesium?
Almost the same. Malate is about 15% elemental magnesium and glycinate about 14%.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. This article is general information and not medical advice. Talk to your healthcare provider before starting any supplement, particularly if you are pregnant or nursing, take prescription medication, or have a kidney condition.