Gut

Daily Probiotic

Four studied strains, with a delivery system built to get them where they’re going.

  • 40 billion CFU, 4 probiotic strains*
  • Supports digestive health*
  • Helps maintain normal immune function*
1

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 Daily Probiotic exists

Sound familiar?

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.

74% reported digestive changes

N Engl J Med 2021 · Read

Vegetables are the first thing I skip.

Less fiber on your plate means less for your gut.

None met daily fiber targets

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.

4 societies agree

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 Daily Probiotic right for you?

An honest answer, so you can decide with confidence.

You'll probably like it if

  • Your digestion feels different.You want simple daily support for your gut.
  • Vegetables are the first to go.Smaller plates mean less fiber-rich food.
  • You prefer one simple step.One daily capsule, not a cabinet of bottles.
Daily Probiotic

Daily Probiotic

from $38.40/mo · Daily probiotic 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

Four probiotic strains, plus prebiotic fiber.

What each one is, and why it's here. Individual amounts inside the blend aren't listed on the label.

Per serving: 2 capsules ·
Marine polysaccharides

From seaweed

Marine polysaccharides

60 mg

What it is

Natural carbohydrates from seaweed.

Why it's here

Included with the probiotic blend.

FOS (prebiotic fiber)

24 mg

What it is

A natural plant fiber that gut bacteria feed on.

Why it's here

Prebiotic fiber that feeds beneficial bacteria.*

4-strain probiotic blend · Proprietary blend

40 billion CFU of four well-studied probiotic strains, in a delivery capsule.

800 mg

MAKTREK® delivery system

In blend

What it is

A capsule technology designed to help probiotics survive stomach acid.

Why it's here

Helps the probiotics reach your gut.

L. acidophilus La-14

In blend

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.*

B. lactis Bl-04

In blend

What it is

A probiotic strain common in the large intestine.

Why it's here

Supports a healthy balance of gut bacteria.*

L. plantarum Lp-115

In blend

What it is

A probiotic strain found in fermented vegetables like sauerkraut.

Why it's here

Supports a healthy balance of gut bacteria.*

L. paracasei Lpc-37

In blend

What it is

A probiotic strain found in fermented dairy.

Why it's here

Supports a healthy balance of gut bacteria.*

  • ✓ Gluten-free
  • ✓ Lactose-free
  • ✓ Corn-free
  • ✓ Hormone-free

How to take it

Simple enough to keep doing.

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.

Meets the DUO Standard

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
What each one means

Questions

Questions we'd ask if we were you.

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.

Daily Probiotic

Ready when you are

Add Daily Probiotic to your DUO.

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

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* 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.