Routine
Best valueThe Complete Routine
Four products for the everyday basics: nutrition, digestion, hydration and weight support. Get all four and the lowest-priced one is on us.
What's inside
4 products · pay for 3
DUO Daily EssentialNutrition
Helps fill everyday nutritional gaps.*
$59.00
Gut SupportGut
Digestion + gut health.*
$46.00FREE
Daily Hydration · Peach MangoHydration
Hydration + electrolytes.*
$48.00
Metabolic SupportWeight
Support for your weight-management routine.*
$50.00
How subscribing works
Full terms- Delivered every 30 daysAlways ships free.
- Skip or change the dateAnytime from your account.
- Cancel online anytimeNo calls needed.
- Save 20% on every deliveryOn top of the free product.
- ✓ Ships free
- ✓ Full Supplement Facts on every product
- ✓ Lowest-priced product free
Prefer to start smaller? Start with DUO Daily Essential
Why these four
Four findings. Four products. One routine.
Each product in the routine answers a published finding about eating less.
13.6%
of GLP-1 users were vitamin D deficient at 12 months — nearly double the rate at 6 months.
Clin Obes · 2026 · Review · Read
74%
of adults in a semaglutide trial reported digestive side effects.
N Engl J Med · 2021 · RCT · Read
~20%
of the water you take in each day normally comes from food.
National Academies · 2005 · DRI report · Read
~30%
of weight lost on GLP-1 therapy came from lean mass, not fat.
Obesity · 2025 · Meta-analysis, 7 RCTs · Read
Studies describe intake and body composition in general or GLP-1 populations. They were not conducted on DUO products, and DUO is not affiliated with these publishers or authors. * 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.
What's inside all four.
Tap a panel to enlarge.
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
The math
One routine, one price.
Same four products. Here's what a month costs each way.
Bought separately, subscribed
$162.40
per month
Bought separately, one-time
$203.00
per month
The Complete Routine, subscribed
$125.60
$4.19 a day · pay for 3
Prefer to start smaller?
Start with one. Build around it.
Questions
Questions we'd ask if we were you.
Yes. Every product is also sold on its own in Shop all products.
The lowest-priced product in the routine, currently Gut Support, is included at no cost.
No. Many people start with DUO Daily Essential and add what fits. The 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.
Get all four.
Pay for three.
- DUO Daily Essential
- Gut Support
- Daily Hydration
- Metabolic Support
- ✓ Ships free
- ✓ Skip or cancel anytime
- ✓ Full Supplement Facts
Prefer to start smaller? Start with Daily Essential
* 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.