Metabolic support · By Flore

For the metabolism you’re trying to coax forward.

Multi-strain, single-target. Issue-specific strains whose metabolites interact with your gut’s own satiety-signaling pathways, on the Universal core. Gentle nudges, not a forced switch.

  • Multi-strain, one job
  • 26 Billion CFU per capsule
  • One capsule a day, shelf-stable
  • Made in an FDA-registered US facility
The Lean One30 capsules · 30-day supply · SLENDER
$49single bottle
One bottle, one time. No subscription required.
Try The Lean One · $49 →

Checkout opens securely on Shopify. Ships in 2–5 business days. Want more than one? Mix any two for $90 or four for $179.

The Lean One by GoodOnes
Multi-strain. 1 job.Metabolic support
23,000+microbiome reports analyzed
cGMP facilityFDA-registered, USA
4.5  Flore family · 329 Trustpilot reviews
23,000+  microbiome reports analyzed
18,700+  people served
cGMP  FDA-registered US facility

Why a targeted formula

Your gut makes its own fullness signals.

The Lean One is built to support that signaling, and nothing else. No stimulants, no caffeine.

Built for satiety signaling

Issue-specific strains picked for metabolic support, on the same Universal core that sits in every GoodOne.

Every ingredient on the label

Genus and species printed on the Supplement Facts panel, with the published research on each strain cited per formula. Look any of them up yourself.

Shelf-stable, no fridge

Shelf-stable through the printed expiry date. Gluten-free, non-GMO, no dairy, no soy. Made in an FDA-registered, cGMP-compliant US facility.

What’s inside

Nudges, not a switch.

The issue-specific strains produce metabolites that interact with GLP-1 and other satiety-signaling pathways, the ones your gut runs on its own after a meal. Flaxseed feeds them.

  • Multi-strain, single-target. One job per bottle.
  • 26 Billion CFU per capsule, total.
  • Every ingredient named on the label.
  • No subscription to try it.
Try The Lean One · $49 →
What’s insideServing size 1 capsule · 30 servings
Issue-specific · the work this bottle is named for
Bifidobacterium animalis subsp. lactis†
Streptococcus thermophilus†
Universal core · in every core GoodOne
Bifidobacterium breveThe Anchor†
Lactobacillus plantarumThe Translator†
Lactobacillus rhamnosusThe Regulator†
Prebiotic
Linum usitatissimum (Flaxseed)50 mg
Proprietary probiotic blend, 26 Billion CFU total per capsule. †Daily value not established. Strains listed by genus and species; full designations on file with Flore. One capsule a day with food. Two a day is the maximum across any GoodOnes you stack.

From checkout to day 30

What happens after you order

The research is the backbone. What you feel is the point.

Step 1

Checkout on Shopify

The Lean One is already in the cart. Orders are typically processed within 2–5 business days and ship USPS or UPS Ground. No cold chain needed.

Step 2

One capsule a day

Take it with a meal. One a day is the sweet spot. Stacking a second GoodOne? Two a day is the maximum.

Step 3

Judge it at day 30

Judge it across the month: appetite, energy, how meals sit. Individual results vary.

Try The Lean One · $49 →

30-day supply. No subscription required. Checkout opens securely on Shopify.

How it works

Fullness is a message. Your gut writes part of it.

Cells in your gut lining release hormones like GLP-1 after you eat. They help tell your brain you’ve had enough. Gut bacteria and the short-chain fatty acids they make are part of that conversation.

The Lean One pairs B. animalis subsp. lactis with Streptococcus thermophilus on the Universal core. Support for a system, not a switch.

The Lean One or The GLP One?

The Lean One supports your own metabolic signaling. The GLP One is built for people already taking a GLP-1 medication. Different jobs.

What we will and won’t claim

We will say: B. animalis subsp. lactis has been studied for body-composition measures in published research, for example a 2016 randomized controlled trial, n = 225 (PMID 27810310). Those are studies of the strains, not trials of the finished GoodOnes formula. GoodOnes has not run its own randomized controlled trials of the finished formulas.

We will not say: that you will lose weight, or that it replaces a medication, diet or exercise. The Lean One is structure-function support for one body system. Individual results vary.

The Lean One bottleSLENDER · The Lean One

Who makes it

Built by the microbiome scientists at Flore.

GoodOnes is the targeted-formula line from Flore Inc., a microbiome company founded in 2018. The formulas come from what Flore’s microbiome dataset shows, packaged as one job per bottle.

23,000+microbiome reports analyzed
18,700+people served across the Flore family
10 yearsof paired microbiome and outcome data
cGMPFDA-registered US facility. Made in America.

Want a formula built from your own gut data? That’s Flore: a microbiome test, then a formula made from your results.

4.5 out of 5Flore family rating from 329 reviews on TrustpilotRead the reviews →

Is this your One?

The probiotic brand that tells you when not to buy.

A targeted formula only earns its keep if it’s aimed at your actual pattern. Read both columns before you order.

The Lean One is for you if

  • You eat well and move, and you want your gut working with you.
  • You want support, not a stimulant.
  • You want every strain named on the label.
  • You’re 18 or over and want to try one bottle first.

Skip it if

  • You expect weight loss from a capsule. Food, sleep and movement do the heavy lifting.
  • You take a GLP-1 medication. The GLP One is built for that.
  • You have a metabolic condition under medical care and haven’t checked with your clinician.
  • You want a treatment. This is a dietary supplement. It is not intended to diagnose, treat, cure, or prevent any disease.

On medication? Keep taking it.

GoodOnes is a supplement. It supports your routine, it doesn’t replace it. The Lean One is daily nutritional support built to sit alongside whatever your doctor has you on, never instead of it.

Show your doctor the label if you’d like their take.

Questions

Before you order

Will I lose weight?

We don’t claim that. The Lean One supports your gut’s own metabolic signaling. Food, movement and sleep still do the heavy lifting. Individual results vary.

Is there caffeine or a stimulant in it?

No. It’s bacteria and a flaxseed prebiotic. Nothing that speeds your heart up.

Can I take it with a GLP-1 medication?

Talk to your prescriber first. If you’re on one, The GLP One is the One built for you.

Do I need a subscription?

No. This page sells one bottle for $49, one time. Want two or four? Mix any Ones for $90 a pair or $179 for four on realgoodones.com. Monthly? Subscribe & Save takes 10% off there, and you can cancel before any renewal by emailing support@flore.com.

What is the shipping and return policy?

Orders are typically processed within 2–5 business days and ship USPS or UPS Ground (5–7 business days), with expedited options priced at checkout. All sales are final except for orders that arrive damaged, defective, or incorrect, which Flore replaces or refunds if you email support@flore.com within 14 days of delivery. Full details on the shipping and returns pages.

Who should not take it?

The adult GoodOnes formulas are for ages 18 and over. They are not appropriate for active GI diagnoses that require medical management. If you are pregnant, nursing, have a weakened immune system, or take prescription medication, talk to your doctor before adding any probiotic.

Ready when you are

One bottle. Thirty days. A nudge, not a shove.

No test, no stool sample, no subscription. One targeted formula for metabolic support, every strain on the label. If it isn’t your One, the Flore team will say so.

Try The Lean One · $49 →

30-day supply. Checkout opens securely on Shopify. Ships in 2–5 business days.

The Lean One by GoodOnes One capsule a day No stimulants No subscription Made in the USA

Disclaimer: 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. Individual results vary. The Lean One is a general-wellness dietary supplement formulated for adults 18 and over. Strain selection is informed by Flore’s dataset of microbiome reports and by published research on the individual strains; where we describe strain research, we mean published studies on the individual strains, not trials of the finished GoodOnes formula. Consult your healthcare provider before starting any supplement, particularly if you are pregnant, nursing, have a medical condition, or take prescription medication.