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Colleen Cutcliffe26 September 2023

Episode 279: Colleen Cutcliffe: How to Heal Your Gut, Control Your Glucose Levels, and Speed Your Metabolism

2Frameworks
12Insights

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Frameworks in this episode

Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Myth Buster· 1

Myth Buster20:00

Why Natural GLP-1 Stimulation Is Not Equivalent to GLP-1 Drugs

Cutcliffe rejects the idea that replenishing a microbe can match the rapid impact of GLP-1 drugs. She says natural GLP-1 rises and falls with meals, whereas the drugs keep a GLP-1-like signal elevated, producing a more potent effect alongside a different side-effect profile.

  • Natural GLP-1 follows an up-and-down meal cycle
  • GLP-1 drugs maintain a stronger signal for longer
  • A natural intervention should not be expected to reproduce rapid drug-level weight loss

you will never see the same impact with acromancia or something natural as you do with the drugs because of the fact that the natural…

Colleen Cutcliffe · 20:30
#glp-1#weight loss drugs#akkermansia

Hot Take· 1

Hot Take24:00

A Supplement Label Does Not Prove What Is Inside the Bottle

Cutcliffe says her company bought products marketed as Akkermansia and sent them for third-party sequencing. According to her, some were actually Lactobacillus, illustrating the gap between a label claim and verified biological contents in a lightly regulated market.

  • Third-party sequencing can test whether a claimed strain is present
  • Cutcliffe reports products labelled Akkermansia that contained Lactobacillus
  • Consumers should distinguish marketing claims from independent verification

we send them to be sequenced by a third party they come back and they're like it's actually it's lactobacillus and not even acromancia

Colleen Cutcliffe · 24:30
#supplements#quality control#label claims

Explainer· 6

Explainer06:00

Why Microbiome Science Suddenly Took Off After 2010

Cutcliffe says probiotics existed for decades, but the microbiome only became a tractable science when DNA sequencing revealed the organisms present in and on the body. Publication volume then accelerated, while large projects connected gut composition with metabolism, skin, and brain function as well as GI conditions.

  • DNA sequencing made previously unseen gut organisms measurable
  • Microbiome publications began rising sharply around 2010
  • Large datasets linked gut health to systems beyond digestion

DNA sequencing allowed us to look at all the different bugs in our microbiome and our skin and that's what's enabled the microbiome to be…

Colleen Cutcliffe · 06:30
#microbiome#dna sequencing#gut science
Explainer09:00

The Fence Analogy for How Akkermansia Maintains the Gut Lining

Cutcliffe compares the gut lining to wooden planks held together by glue. She says the mucin layer can weaken with age, stress, diet changes, and travel, while Akkermansia lives at that lining and helps regulate the old and new mucin.

  • Mucin acts like glue between the gut lining's structural units
  • Age, stress, diet, and travel may weaken the lining
  • Akkermansia is described as living in and regulating that lining

it pulls the old glue off when the glue gets old it puts new glue on and it just keeps those planks strong

Colleen Cutcliffe · 10:00
#akkermansia#gut lining#mucin
Explainer13:30

Why Akkermansia Requires an Oxygen-Free Manufacturing Process

The organism naturally lives where there is no oxygen and in a sticky mucin layer. Manufacturing therefore requires both an end-to-end oxygen-free environment and a way to recreate the conditions of its natural habitat.

  • Akkermansia's natural environment contains no oxygen
  • Ambient oxygen makes ordinary manufacturing unsuitable
  • The process must also mimic the mucin layer where it grows

you have to create a manufacturing plant that end to end doesn't allow a single molecule of oxygen in which of course is everywhere in…

Colleen Cutcliffe · 13:30
#akkermansia#manufacturing#biotech
Explainer16:00

The Three Jobs GLP-1 Performs After You Eat

Cutcliffe explains GLP-1 as a post-meal signal generated through interactions between food, gut microbes, and L cells. She attributes three roles to it: stimulating insulin secretion, signalling fullness to the brain, and slowing food processing to extend satiety.

  • GLP-1 stimulates insulin secretion after food intake
  • It sends a fullness signal to the brain
  • It slows food processing and supports satiety
  • Natural GLP-1 levels rise after eating and then fall

the third thing is it slows down the processing of your food so that that actually also gives you a feeling of fullness

Colleen Cutcliffe · 17:00
#glp-1#insulin#satiety#metabolism
Explainer27:30

The Soccer-Team Analogy for Single Strains vs Full Formulations

Cutcliffe uses a soccer team to explain why adding one depleted strain may help some people while others may need several organisms in the same metabolic pathway. Akkermansia is the frequently missing striker in the analogy, while a broader formulation supplies the full cast.

  • A single missing strain can bottleneck a larger biological pathway
  • Different people may be depleted in different organisms
  • A multi-strain formulation targets the wider pathway rather than one component

it's like you're on a soccer team and you're missing the striker yeah you're never going to score

Colleen Cutcliffe · 28:30
#probiotics#formulations#metabolism
Explainer38:00

Why a Potency Label Should Hold at the End of Shelf Life

Cutcliffe says viable organisms decline over time, so her company labels the amount guaranteed at the two-year shelf-life point rather than only the amount present at manufacture. A new bottle may contain more, but the printed quantity is intended as a minimum through expiry.

  • Viable strain counts can decline during storage
  • The stated quantity is guaranteed at the two-year point
  • Early-life potency may therefore exceed the label amount

what we want to put on the label is the amount that you'll be taking if you're taking it at the two-year time point

Colleen Cutcliffe · 38:00
#shelf life#potency#quality control

Story· 1

Story33:00

Cutcliffe's Blinded Continuous-Glucose-Monitor Experiment

Cutcliffe describes alternating glucose-control and placebo periods while hiding the continuous glucose monitor data from herself until the end. She says she could distinguish the active period through stronger workouts and fewer post-lunch slumps, then saw smaller glucose peaks and crashes after unblinding.

  • She compared an active formulation with placebo
  • She remained blinded to the CGM data during the experiment
  • Subjective energy changes appeared before she reviewed the measurements
  • She reported lower glucose peaks and crashes during the active period

I made myself blinded to all the CGM data until the very end of my little study but I knew when I was on glucose…

Colleen Cutcliffe · 33:30
#cgm#self experiment#blood glucose#energy

Takeaway· 3

Takeaway23:00

Polyphenols and Fibre May Support Existing Akkermansia

No food source of Akkermansia had been identified in the discussion. Cutcliffe says that when someone already has low levels in the gut, polyphenols and fibres can act as prebiotics that support its growth.

  • The episode identifies no known food that directly contains Akkermansia
  • Akkermansia has been found in breast milk
  • Polyphenols and fibres may stimulate growth of existing Akkermansia

polyphenols and fibers can help stimulate the growth of acromancia so that's sort of the only other way to do it

Colleen Cutcliffe · 23:30
#prebiotics#polyphenols#fibre#akkermansia
Takeaway43:30

Why Supplement Quality Control Needs Independent Labs

Internal manufacturing and quality teams are not enough on their own, Cutcliffe argues. She says certified third-party labs verify viability, organism count, and product identity, with each bottle tied to a certificate and external measurements.

  • Independent labs verify identity, viability, and count
  • Third-party evidence reduces reliance on a manufacturer's own claims
  • Certificates can connect a bottle to its validation record

when it comes to Quality Control you really need third parties to validate your product

Colleen Cutcliffe · 43:30
#third-party testing#supplements#quality assurance
Takeaway47:30

Food Cravings Are Not Simply a Failure of Willpower

Cutcliffe argues that guilt about cravings overlooks biological appetite systems. She frames supportive tools and habits as ways to reduce the strength of cravings, not as promises of perfect discipline or the elimination of every vice.

  • Cravings involve bodily signalling as well as conscious discipline
  • Guilt can create an unhelpful mental cycle after eating
  • Reducing a craving can still be valuable even when it is not eliminated

a lot of people feel guilty when we have cravings and then we break and we succumb to those cravings and we just think like…

Colleen Cutcliffe · 47:30
#cravings#willpower#mindset#habits