Should You Take Magnesium? Benefits and Considerations

Ever find yourself tossing and turning at night, googling things like “how to relax naturally” or “why am I so tired but can’t sleep”? Welcome to the magnesium curiosity club.
If you’ve heard people talking about magnesium and wondered if it's just another wellness buzzword, you’re not alone. It seems like one of those supplements that quietly shows up in conversations about stress, sleep, mood, or muscle cramps—but no one really explains what it does or whether you actually need it.
Let’s break it down.
What Even Is Magnesium (and Why Should You Care)?
Magnesium is a mineral your body uses for… a lot. Like over 300 different processes a lot¹. Think of it as the behind-the-scenes crew that helps keep your muscles moving, your brain firing, and your body feeling balanced.
And here’s the kicker: a lot of people don’t get enough of it². Not because we’re all walking around on the edge of disaster, but mainly because modern diets are kind of, well, magnesium-light. Processed foods, over-farmed soil, not enough greens—all of that adds up.
So even if you’re eating “pretty healthy,” you might still be skimping on magnesium without realizing it.
How Do You Know If You’re Low?
This part’s a little tricky. There’s no dramatic signal that says: “Hey! Magnesium here! I’m running low!” But there are a few low-key clues your body might be giving you.
- Trouble falling or staying asleep
- Feeling tense or anxious
- More muscle cramps than usual
- A general sense that your body is running on fumes
Of course, all of those things could have a dozen other causes. But if those symptoms feel familiar and persistent—magnesium might be worth experimenting with.
What Magnesium Might Help With
Alright, here’s where it gets interesting. These are some of the areas where magnesium may do a little heavy lifting in your daily life.
Sleep
A lot of people reach for magnesium when they’re struggling with sleep—and there’s some science to support that. Magnesium may help your body wind down by supporting a sense of calm and relaxation³. It’s not a knock-you-out supplement, but more like setting the mood for your body to rest.
Stress and Mood
Magnesium plays a role in how our bodies respond to stress—and may even support balanced mood⁴. If you’ve been feeling a little more irritable or edgy than usual, low magnesium could be one small piece of that puzzle.
Muscle Function
Ever had those random leg cramps at night? Magnesium may help with normal muscle function and help reduce minor physical tension⁵. It’s not a magical fix, but it can support how your muscles respond, especially after workouts or long days on your feet.
Energy
Here’s something most people don’t realize: magnesium is involved in how your body creates energy at a cellular level⁶. If your get-up-and-go feels more like sit-down-and-sigh, it might be worth looking at magnesium (alongside your sleep, diet, and general lifestyle, of course).
How to Try It Without Overcomplicating Life
First off: food first.
Before jumping into supplements, try adding more magnesium-rich foods to your plate. Some good ones:
- Spinach
- Pumpkin seeds
- Black beans
- Almonds
- Dark chocolate (yes, really)
These also give you fiber, antioxidants, and other good stuff, so you’re getting more bang for your smoothie bowl.
If you’re still curious after a few weeks of upping those foods, you might consider trying a magnesium supplement—just keep it simple.
There are a few different types (magnesium citrate, glycinate, oxide, etc). If you’re aiming for relaxation and sleep support, magnesium glycinate is often a gentle choice. Citrate can help if digestion is slow, but fair warning: it might send you running to the bathroom if you take too much.
Start with a small dose (like 100–200 mg), preferably in the evening. See how your body feels. You don’t need to go all-in right away.
What I’ve Noticed Personally
I started paying attention to magnesium a couple years ago when I was in a weird cycle of burnout. You know the kind: work stress, tired all the time, can’t sleep—but also can’t relax.
I didn’t expect a miracle, but I did notice something subtle after I started adding magnesium-rich meals and a low-dose supplement. My sleep got smoother. I wasn’t out-cold-drooling-on-the-pillow every night, but the edge of that tension started to dull. And honestly, that was enough to keep it in my rotation.
Now I make a point to throw pumpkin seeds into my granola and keep a magnesium bottle in the bathroom cabinet for times when stress levels creep up.
Keep in Mind
Magnesium isn’t a cure-all. If everything feels off, don’t assume it's just a magnesium thing. And if you’re taking medications or have health concerns, it’s always a good idea to check with someone who knows your health history.
But if you’re looking for a small, low-effort wellness tweak that could support better sleep, mood, and energy—it might be worth a try.
Final Thought
Life’s already complicated. Taking care of yourself shouldn't be.
Magnesium isn’t flashy or trendy—it’s more like a quiet helper that keeps your body’s rhythm running smoothly. If anything in this post made you go, “Huh, that’s me,” then give it a shot. Eat more greens. Try a handful of almonds. Maybe even test out a low-dose supplement for a week or two.
No pressure. Just curiosity.
Because sometimes the smallest shifts make the biggest difference.
Sources
[1] Magnesium in Man: Implications for Health and Disease – Physiological Reviews. 2012. DOI: https://doi.org/10.1152/physrev.00012.2011
[2] Dietary Magnesium Intake in the US Population – Nutrition Reviews. 2017. DOI: https://doi.org/10.1093/nutrit/nux022
[3] Effect of magnesium supplementation on primary insomnia – Journal of Research in Medical Sciences. 2012. DOI: https://doi.org/10.4103/1735-1995.200887
[4] The role of magnesium in the central nervous system – Magnesium Research. 2010. DOI: https://doi.org/10.1684/mrh.2010.0220
[5] Magnesium and muscle cramps: a systematic review – Journal of the American Board of Family Medicine. 2012. DOI: https://doi.org/10.3122/jabfm.2012.06.110334
[6] Magnesium and the Bioenergetics of Mitochondria – Biochimica et Biophysica Acta. 2004. DOI: https://doi.org/10.1016/j.bbabio.2004.04.016