Justin Mares

Founder & CEO, Truemed · 1 appearance on the record.

computed by AI from the episodes · how this works → · full disclaimer →

founderexecutiveauthorinvestor@jwmares ↗LinkedIn ↗justinmares.com ↗

Justin Mares is the founder of health brands including Kettle & Fire, Perfect Keto, and Surely, as well as Truemed, a platform enabling HSA/FSA spending on preventive health. He also co-authored the startup growth book Traction.

29statements → 24claims → 22claims resolved → 23%fully supported → 3.83/5average certainty → 2.62/5average debate potential → 4.5/5argument clarity · the sources →

5 supported 7 partly supported 10 contradicted 2 not checkable as stated how the 24 claims stand · each chip opens the sources

1 prediction · 23 assertions · 1 opinion · 4 insights · every statement was checked. The prediction and assertions are the 24 claims: statements the public record can support or contradict. 22 are resolved, and 2 name no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Justin argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported
Mares: Monsanto spent tens of millions lobbying for glyphosate liability shield
“A couple months ago Monsanto was lobbying hard, spent tens of millions of dollars to get a rider and a bill that would basically make sure that no one could ever sue them for the potential health impacts of one of their most popular products, glyphosate.”
Justin Mares Feb 4, 2026 ▶ 22:31 How Truemed Is Incentivizing Americans to Invest in Prevention

Their most notable contradicted claim

Assertion Contradicted
Mares: Average US child gets less outdoor time than a prison inmate
“The average child spends less time outside than, like, a maximum security prison where people are spending eight plus hours on phone.”
Justin Mares Feb 4, 2026 ▶ 0:04 How Truemed Is Incentivizing Americans to Invest in Prevention

Expressed certainty vs assessment result

none yet certainty 1
none yet certainty 2
50% certainty 3
35% certainty 4
50% certainty 5

weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet

Argument clarity: do they answer the question? how? →

4.5 / 5 directness 4.8 · coherence 4.9 · precision 4.2 · compression 3.9

redirected or did not address 1 of 17 assessed questions (6%). Watch them ▸

This is a score against a rubric. It is not a rank. Every host question → answer exchange is scored with names hidden on directness, coherence, precision and compression, 1–5 each, on meaning alone: disfluencies are ignored, and only raw unedited episodes count. This is the score that measures thought. Every scored exchange, scores shown → · The rubric and its checks →

How they sound: speaking style how? →

287 words/min while actually speaking · 19.9 um and uh per 1k words · 11.7 false starts per 1k · 31.8% of pauses land inside a clause

Measured by listening to the audio itself: 6,995 words across 1 episode of raw-level tape, transcribed verbatim with every um and uh kept, each one attributed only where the alignment onto our timed stream is unambiguous. These are measurements of speaking style. We do not rank them: across this corpus, fluency and argument quality are nearly uncorrelated (ρ≈0.2), and smooth talking does not signal clear thinking. How it's measured →

Everything Justin Mares said on the a16z Podcast that made the record, most notable first. Filter by type, assessment or year in the ledger →

Assertion Partly supported
Mares: Coca-Cola spent $140M influencing US nutrition guidelines over 15 years
“Coca-Cola spending one hundred forty million dollars to influence our nutrition guidelines like they have over the last, you know, 15 years.”
Justin Mares Feb 4, 2026 ▶ 27:15 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Partly supported
Mares: Ketogenic diets can resolve schizophrenia, epilepsy, and bipolar symptoms
“One of the best therapies for someone that is schizophrenic or epileptic Or even, in many cases, bipolar. If you put them on a ketogenic diet, these things will, in many cases, just resolve.”
Justin Mares Feb 4, 2026 ▶ 30:39 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: Average US child gets less outdoor time than a prison inmate
“The average child spends less time outside than, like, a maximum security prison where people are spending eight plus hours on phone.”
Justin Mares Feb 4, 2026 ▶ 0:04 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: Average American gets almost 20% of calories from soybean oil
“Today, the average American gets almost 20% of their caloric intake from soybean oil.”
Justin Mares Feb 4, 2026 ▶ 7:15 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Not checkable as stated
Mares: Ozempic users eating standard diets will suffer nutrient deficiencies
“If you're still eating the same crap that the average American is eating today, but you're on Ozempic and eating less of it, like, you are almost certainly going to be deficient in protein and micronutrients and a bunch of things that will have, like, long-ter…”
Justin Mares Feb 4, 2026 ▶ 9:56 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: No US healthcare payer covers exercise for heart disease prevention
“And yet, if you look at our healthcare system, nothing in the healthcare system thinks about someone who is at risk of heart disease exercising as a healthcare intervention. No payer pays for it. No one incentivizes you to do that.”
Justin Mares Feb 4, 2026 ▶ 11:46 How Truemed Is Incentivizing Americans to Invest in Prevention
Insight
Mares: Health requires changing personal environments, not relying on discipline
“I think that that is, like, an important idea that people don't think about enough is just how do you shape your environment so that it's naturally health promoting, as opposed to you know, having to, like, Discipline yourself and doing all the stuff that most…”
Justin Mares Feb 4, 2026 ▶ 17:48 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: US permits 60,000 to 80,000 chemical compounds banned in EU
“And the end result is we have between like 60 and 80,000 chemical compounds in the U.S. That are not allowed in, in the EU.”
Justin Mares Feb 4, 2026 ▶ 21:13 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Supported
Mares: Monsanto spent tens of millions lobbying for glyphosate liability shield
“A couple months ago Monsanto was lobbying hard, spent tens of millions of dollars to get a rider and a bill that would basically make sure that no one could ever sue them for the potential health impacts of one of their most popular products, glyphosate.”
Justin Mares Feb 4, 2026 ▶ 22:31 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Supported
Mares: $14B in legal damages awarded over glyphosate health exposure
“There's been fourteen billion dollars of damages awarded to people that have gotten cancer or other diseases from glyphosate exposure.”
Justin Mares Feb 4, 2026 ▶ 23:25 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: 80% of US schools hold contracts with soda companies
“80% of schools have contracts with soda companies.”
Justin Mares Feb 4, 2026 ▶ 25:56 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Partly supported
Mares: Ketamine therapy works better than SSRIs for severe depression and PTSD
“Ketamine therapy, ketamine assisted therapy works better than SSRIs in many cases, especially for treating things that are very intense, like treatment resistant depression, PTSD, things like this.”
Justin Mares Feb 4, 2026 ▶ 27:57 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: Lifestyle and functional medicine interventions outperform talk therapy for depression
“There have been studies that show just by focusing and taking a functional medicine approach, you know, focusing on sleep, focusing on gut health, focusing on lowering your inflammation through diet and exercise, that combination of therapies works better than…”
Justin Mares Feb 4, 2026 ▶ 29:48 How Truemed Is Incentivizing Americans to Invest in Prevention
Prediction Not checkable as stated
Mares: Non-patentable peptides will be exceptionally disruptive to pharma
“Oh man, I think peptides are going to be so disruptive to our current healthcare system. You know, I think that if you look at peptides there needs to be way more research. I'm like, not totally yet a peptide believer. But there needs to be way more research, …”
Justin Mares Feb 4, 2026 ▶ 35:52 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Contradicted
Mares: Big food outfunded the NIH 11-to-1 on nutrition science research
“Most of nutrition science is funded by a big food company. They outfund the NIH, like, 11 to one on nutrition science, at least historically.”
Justin Mares Feb 4, 2026 ▶ 37:29 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Partly supported
Mares: Ultra-processed foods make up 70% of children's diets today
“Most kids today are eating like 70% of their diet is ultra processed foods.”
Justin Mares Feb 4, 2026 ▶ 5:47 How Truemed Is Incentivizing Americans to Invest in Prevention
Insight
Mares: Fixing crop subsidies is single biggest lever for food reform
“From a food system standpoint, I think the biggest single lever that we could pull, which would be extraordinarily politically challenging to pull, is fixing our, like, crop subsidy system.”
Justin Mares Feb 4, 2026 ▶ 6:17 How Truemed Is Incentivizing Americans to Invest in Prevention
Opinion
Mares: Ozempic Is Unlikely to Be a Cure-All for Obesity
“You know, and I just think that it is quite unlikely that Ozempic is the one thing that is going to be a cure all.”
Justin Mares Feb 4, 2026 ▶ 9:42 How Truemed Is Incentivizing Americans to Invest in Prevention
Insight
Mares: Most US political issues stem from chronic health crisis
“I think many of our political problems are downstream of the fact that many, the majority of the country is just sick.”
Justin Mares Feb 4, 2026 ▶ 19:36 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Supported
Justin Mares: Most food consumed in the U.S. is ultra-processed
“When you look at our food system today, the majority of what people are eating is ultra processed crap.”
Justin Mares Feb 4, 2026 ▶ 0:00 How Truemed Is Incentivizing Americans to Invest in Prevention
Insight
Justin Mares: Poor health is the default outcome in modern American environment
“And so I think that the environment that we exist in is just structurally just hard to be healthy, which is why you see the default health outcomes in the U.S. Being so poor.”
Justin Mares Feb 4, 2026 ▶ 3:13 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Supported
Justin Mares: Amish communities achieve significantly better health outcomes than modern Americans
“Certainly, they have much better health outcomes, and they live very differently than you or I.”
Justin Mares Feb 4, 2026 ▶ 3:56 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Partly supported
Mares: US childhood obesity and heart disease escalated in the 1970s
“Things started to get much worse in the 19 seventies. You know, basically I think my view is that that is around the time when you started to see childhood obesity tick up. You started to see obesity, heart disease, things like this kind of start to move.”
Justin Mares Feb 4, 2026 ▶ 4:19 How Truemed Is Incentivizing Americans to Invest in Prevention
Assertion Partly supported
Mares: US spent nearly $100B on crop subsidies over past decade
“The U.S. Government over the last I think it's the last decade, has spent close to, like, a hundred billion dollars on crop subsidies.”
Justin Mares Feb 4, 2026 ▶ 6:26 How Truemed Is Incentivizing Americans to Invest in Prevention

Show 5statements(5 left)

Appearances (1)

EpisodeDateSpeaking time
How Truemed Is Incentivizing Americans to Invest in Prevention Feb 4, 2026 31m
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