
From seaweed
Marine polysaccharides
60 mgWhat it is
Natural carbohydrates from seaweed.
Why it's here
Included with the probiotic blend.
Gut
Four studied strains, with a delivery system built to get them where they’re going.
How subscribing works
Full termsWhy Daily Probiotic exists
Eating less can change how digestion feels.
My digestion feels different now.
You're not imagining it. It's the most common change people report.
N Engl J Med 2021 · Read
Vegetables are the first thing I skip.
Less fiber on your plate means less for your gut.
Nutrients 2025 · 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?
An honest answer, so you can decide with confidence.
You'll probably like it if

Daily Probiotic
from $38.40/mo · Daily probiotic support.*
Check with your provider first if
Still not sure? Ask us a question
DUO products are dietary supplements, not medications.
What's inside
What each one is, and why it's here. Individual amounts inside the blend aren't listed on the label.

From seaweed
What it is
Natural carbohydrates from seaweed.
Why it's here
Included with the probiotic blend.
What it is
A natural plant fiber that gut bacteria feed on.
Why it's here
Prebiotic fiber that feeds beneficial bacteria.*
40 billion CFU of four well-studied probiotic strains, in a delivery capsule.
800 mg
What it is
A capsule technology designed to help probiotics survive stomach acid.
Why it's here
Helps the probiotics reach your gut.
What it is
A probiotic strain naturally found in the gut and in fermented foods.
Why it's here
Supports a healthy balance of gut bacteria.*
What it is
A probiotic strain common in the large intestine.
Why it's here
Supports a healthy balance of gut bacteria.*
What it is
A probiotic strain found in fermented vegetables like sauerkraut.
Why it's here
Supports a healthy balance of gut bacteria.*
What it is
A probiotic strain found in fermented dairy.
Why it's here
Supports a healthy balance of gut bacteria.*
How to take it
Daily
From the label
Take two (2) capsules once a day as a dietary supplement. For best results, take one (1) capsule during the day and one (1) capsule in the evening. Do not exceed two capsules per day.
Habit
Keep it consistent
Same time each day makes it easy to remember.
Our own internal standard. Not a third-party certification.
Questions
Take two (2) capsules once a day as a dietary supplement. For best results, take one (1) capsule during the day and one (1) capsule in the evening. Do not exceed two capsules per day.
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
Four studied strains, with a delivery system built to get them where they’re going.
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.