Nutrition
Magnesium
275 mg of elemental magnesium, in the form that’s gentle on your stomach.
- Supports nervous system function*
- Eases muscle tension and cramping*
- Promotes calm, restful sleep*
How subscribing works
Full terms- Delivered every month. Free shipping over $75.
- Skip or change the date from your account.
- Cancel online anytime.
- Save 20% on every delivery.
- Full Supplement Facts panel
- Formulated on published research
- Skip or cancel anytime
- Free shipping over $75
Why Magnesium exists
Sound familiar?
Eating less changes more than your plate.
A few bites and I'm done.
Smaller meals leave less room for vitamins and minerals.
Clin Obes 2026 · Read
I'm eating less, but am I eating enough?
You're not imagining it. One study measured 271 fewer calories at a single meal.
Diabetes Metab Syndr 2026 · Read
Nobody told me what to eat with this.
You're not alone. Four medical societies now say nutrition belongs in GLP-1 care.
Am J Clin Nutr 2025 · Read
Built by a family that's been through it. Read our story
Quotes describe common experiences. Studies aren't of DUO products. All research
Is this right for me?
Is Magnesium right for you?
An honest answer, so you can decide with confidence.
You'll probably like it if
- Your plate got smaller.You’re eating less and want the basics covered.
- You want one simple step.One daily foundation, not a cabinet of bottles.
- You like knowing why.Every ingredient listed, in plain language.
Magnesium
from $38.40/mo · Everyday magnesium support.*
Check with your provider first if
- You’re pregnant, nursing or planning to be.
- You take prescription medication, including for diabetes or blood pressure.
- You have a medical condition or an upcoming procedure.
Still not sure? Ask us a question
DUO products are dietary supplements, not medications.
What's inside
One ingredient. Magnesium.
from 2,500 mg Magnesium Glycinate · 3 capsules
Involved in hundreds of enzyme reactions, including normal muscle and nerve function.*
- ✓ Gluten-free
- ✓ Lactose-free
- ✓ Vegetarian
- ✓ Vegan
- ✓ Non-GMO
How to take it
Simple enough to keep doing.
Daily
From the label
As a dietary supplement, take three (3) capsules once daily or as directed by your healthcare professional.
Habit
Keep it consistent
Same time each day makes it easy to remember.
If we can't explain why it's here, it doesn't belong here.
Our own internal standard. Not a third-party certification.
- 01Purposeful
- 02Evidence-led
- 03Transparent
- 04Tested
- 05Explainable
Questions
Questions we'd ask if we were you.
As a dietary supplement, take three (3) capsules once daily or as directed by your healthcare professional.
No. Every DUO product is sold on its own. The Complete Routine is for people who want all four areas covered at the best price.
Talk to your healthcare provider or pharmacist before starting any supplement if you take medication. Bring the full Supplement Facts with you; you can find them above.
No. DUO is an independent dietary supplement brand. It is not affiliated with, endorsed by, or connected to any pharmaceutical company or prescription medication.
Ready when you are
Add Magnesium to your DUO.
275 mg of elemental magnesium, in the form that’s gentle on your stomach.
Full Supplement Facts · Free shipping over $75 · Skip or cancel anytime
Want every area covered? See the Complete Routine
* 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. Talk with your healthcare provider before starting any supplement, especially if you take medication.