Reading time: ~6 minutes · Educational, not medical advice. See disclaimer below.
If you've spent any time in the wellness aisle lately, you've seen magnesium everywhere — powders, gummies, capsules, sprays. It's having a moment. But the conversation is often long on hype and short on substance, and "magnesium" isn't one single thing: the form it comes in changes how well your body absorbs it and how your stomach feels about it.
Here's a calm, plain-English look at what the published science actually says — including why we chose magnesium glycinate for Hola Calm.
What magnesium actually does in the body
Magnesium is one of the most worked minerals you've got. It's the fourth most abundant mineral in the human body and acts as a cofactor in more than 300 enzyme systems — the behind-the-scenes reactions involved in energy (ATP) metabolism, protein synthesis, normal muscle and nerve function, and more.[2][1]
A few of its everyday, structure-and-function roles worth knowing:
- It contributes to normal muscle function and normal nerve transmission — part of why magnesium is so often associated with the feeling of "winding down."[2][1]
- It plays a role in normal energy-yielding metabolism.[1]
- It's involved in normal psychological function and helping the body manage everyday demands.[1]
None of this means magnesium is a cure for anything — it's a nutrient your body needs to run normally, full stop.
Most of us simply don't get enough
Here's the part that surprises people: according to the U.S. National Institutes of Health, the diets of most people in the United States provide less than the recommended amount of magnesium, with certain groups (like teenage girls and older adults) most likely to fall short.[1] Modern factors — processed foods, lower mineral content in some produce, plus alcohol and heavy caffeine intake — don't help.[3]
So for a lot of busy, switched-on people, gently topping up magnesium as part of a daily routine is a reasonable, food-first idea — not because it's a magic fix, but because it's a nutrient many of us are quietly running low on.
Not all magnesium is created equal: the form matters
This is the single most useful thing to understand. "Magnesium" on a label is always bound to something else — and that pairing decides two things: how much your body can absorb and how gentle it is on your gut.
What the published evidence broadly shows:
- Organic forms tend to absorb better than inorganic ones. A 2021 systematic review in Nutrition concluded that inorganic formulations (like magnesium oxide) appear less bioavailable than organic ones, and that absorption is dose-dependent.[4] The NIH likewise notes that forms such as magnesium oxide and magnesium sulfate are absorbed less well than several other forms.[1]
- Amino-acid-bound ("chelated") forms — like magnesium glycinate — are a distinct category from organic-acid forms like citrate or malate, and research continues to compare how different compounds move into the body.[3]
An honest caveat: the science here is still evolving and not perfectly tidy. Head-to-head human studies don't always crown a single "winner," and at least one 2024 clinical study (industry-funded, comparing several formats) found magnesium bisglycinate didn't raise short-term blood levels as much as some other formats in that particular test.[5] Anyone who tells you one form is definitively "the best absorbed, period" is getting ahead of the evidence. We'd rather be straight with you.
Why we chose magnesium glycinate: gentle enough to actually keep using
If absorption were the whole story, this would be a shorter article. But there's a second factor that matters just as much in real life: tolerability.
Some popular magnesium forms have a well-known downside. Magnesium citrate, for example, draws water into the intestines — which is exactly why it's used in higher doses as an osmotic laxative. Magnesium oxide and high doses from supplements are also commonly associated with loose stools and stomach upset.[1] If a supplement sends you running to the bathroom, you're not going to take it consistently — and consistency is the whole game with a daily ritual.
Magnesium glycinate is magnesium bound to glycine, a gentle amino acid. It's the form widely chosen by people who want magnesium without the digestive drama, which is why it shows up so often in calm- and sleep-adjacent products. (Glycine itself is simply an amino acid your body already uses.) For a drink you're meant to enjoy every day, "gentle on your stomach" isn't a nice-to-have — it's the point.
The honesty sidebar. The magnesium category is full of overclaiming, and serious researchers push back on it. Case in point: a 2017 review concluded that the trendy idea of "transdermal" magnesium (sprays and flake baths) is scientifically unsupported versus well-studied oral magnesium.[6] We mention this because we'd rather point you to what the evidence actually supports than sell you a myth.
Magnesium and Vitamin D: a quiet partnership
Magnesium and vitamin D also tend to work as a team: magnesium is among the cofactors the body relies on in the enzymatic steps that process vitamin D.[2] It's a useful reminder that nutrients generally work together rather than in isolation — which is the simple thinking behind keeping a few familiar, well-studied nutrients in one daily routine.
How Hola Calm uses magnesium glycinate
Hola Calm isn't a mega-dose deficiency treatment, and we won't pretend it is. Each stick delivers 100 mg of magnesium, as magnesium glycinate (25% of the Daily Value) — a sensible, gentle amount built into a daily calm + balance ritual, alongside L-theanine, ashwagandha root extract, and vitamin D3. Each ingredient has a clear, simple job; magnesium glycinate's is to bring magnesium in a form that's easy on your stomach so you can actually keep the habit.
It's Stevia-sweet, with no added sugar, made in a GMP facility, and designed to taste good enough to look forward to. Mix one stick with 8–16 oz of water; don't exceed 2 sticks per day. It's not for use during pregnancy — and if you're nursing, taking medication, or managing a health condition, check with your healthcare provider first.
If you're curious about the other three ingredients, they each get their own deep-dive in this series.
References & Sources
Compiled from peer-reviewed, PubMed-indexed research and the U.S. NIH Office of Dietary Supplements. This article summarizes general research on the nutrient magnesium; it is educational, not a description of what this product does, and not medical advice.
- U.S. National Institutes of Health, Office of Dietary Supplements. Magnesium — Fact Sheet for Health Professionals. (ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/)
- Gröber U, Schmidt J, Kisters K. Magnesium in Prevention and Therapy. Nutrients. 2015;7(9):8199–8226. DOI: 10.3390/nu7095388
- Ateş M, et al. Dose-Dependent Absorption Profile of Different Magnesium Compounds. Biological Trace Element Research. 2019;192(2):244–251. DOI: 10.1007/s12011-019-01663-0
- Pardo MR, Garicano Vilar E, San Mauro Martín I, Camina Martín MA. Bioavailability of magnesium food supplements: A systematic review. Nutrition. 2021;89:111294. DOI: 10.1016/j.nut.2021.111294
- Pajuelo D, et al. Comparative Clinical Study on Magnesium Absorption and Side Effects After Oral Intake of Microencapsulated Magnesium Versus Other Magnesium Sources. Nutrients. 2024;16(24):4367. DOI: 10.3390/nu16244367
- Gröber U, Werner T, Vormann J, Kisters K. Myth or Reality—Transdermal Magnesium? Nutrients. 2017;9(8):813. DOI: 10.3390/nu9080813
Disclaimer. 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. This article is for general educational purposes only and is not medical advice. Individual results vary. Dietary supplements are not a substitute for a balanced diet. Consult a qualified healthcare professional before starting any supplement, especially if you are pregnant, nursing, taking medication, or managing a health condition. Not for use by pregnant women. Keep out of reach of children.