user avatar
Justin Mares
@jwmares
Founder @truemed, @kettleandfire, @drinksurely, others. Venture partner @LongJourneyVC. Sign up for my newsletter on health and startups:
Austin, TX
justinmares.substack.com
Joined May 2010
831
Following
46.6K
Followers
Posts
  • Pinned
    user avatar
    Justin Mares
    @jwmares
    Dec 22, 2025
    Today, 90%+ of healthcare spend (all $4.5T of it) goes towards treating chronic conditions after someone is sick. Less than 3% of that spend goes towards prevention. @truemed exists to get more people investing in True Medicine. Exercise, food, supplements, movement, sleep,
    00:00
    501K
  • user avatar
    Justin Mares
    @jwmares
    Apr 1, 2025
    Singapore created the world's most efficient healthcare system from scratch in one generation. They spend $4,000 per person on healthcare. We spend $15,000. Their secret? The exact opposite of what American "experts" recommend: 🧵
    3.7M
  • user avatar
    Justin Mares
    @jwmares
    Jan 6, 2023
    1990: zero states with obesity rates above 20% 2018: zero states with obesity rates below 20% Not to mention an explosion in chronic disease, cancer, ADHD, inflammation... Something has to change. And that something is our broken food system.
    1.9M
  • user avatar
    Justin Mares
    @jwmares
    Feb 16, 2025
    Why do the French eat cheese, butter, and drink wine—but still have lower rates of heart disease than Americans? After some digging, I found out what was going on... The “French Paradox”—explained: 🧵
    997K
  • user avatar
    Justin Mares
    @jwmares
    Apr 9, 2021
    Here's a cheery Friday fact. An average 22 year-old male today has roughly the same testosterone levels as a 67 year old had in the year 2000. Average testosterone has fallen close to 50% in the last 2 decades, and nobody is talking about it.
  • user avatar
    Justin Mares
    @jwmares
    Apr 4, 2025
    Italians aren’t counting calories at all. They eat pasta, cheese, gelato and stay thin. When Americans eat similarly, they get morbidly obese and sick. What on Earth is going on? The flavor-nutrition disconnect, explained: 🧵
    684K
  • user avatar
    Justin Mares
    @jwmares
    Apr 6, 2021
    I'm seeing a big shift in friends moving away from: - alcohol - caffeine - nicotine and towards - cannabis - psychedelics We don't want our parents' drugs.
  • user avatar
    Justin Mares
    @jwmares
    Dec 15, 2024
    The FDA literally has a 10-second rule. If a company fries something in oil for less than 10 seconds, there's no requirement to add the oil to the ingredient label. Reform can't come soon enough.
    247K
  • user avatar
    Justin Mares
    @jwmares
    Aug 10, 2022
    I think a lot of people are sleeping on just how big the "Boomer's retiring and selling their business" is going to be in the next decade Something like $30 trillion of SMB equity is going to change hands (or... not and shut down) Massive generational shift going on
  • user avatar
    Justin Mares
    @jwmares
    May 28, 2019
    1/n A quick tweetstorm about why I think Beyond Meat ($BYND) and Impossible Foods are the trans fat purveyors of our generation.
  • user avatar
    Justin Mares
    @jwmares
    May 12, 2021
    It's crazy to me that school today: - put kids inside all day - feeds them terrible foods - make them sit 6+ hours - pretends they can pay attention to not-that-interesting topics for 6 hours And when they can't do the above, we medicate them.
  • user avatar
    Justin Mares
    @jwmares
    Apr 1, 2025
    Replying to @jwmares
    9/ The price transparency experiment is fascinating: All healthcare providers in Singapore must display their prices and outcomes so that buyers can assess the cost and quality. Why? MOH published all hospital prices online. Markets work when consumers have information.
    151K
  • user avatar
    Justin Mares
    @jwmares
    Apr 1, 2025
    Replying to @jwmares
    4/ They ranked healthcare 5th in priority, after: • International recognition • Defense capabilities • Economic development • Housing Why? Building wealth creates resources for healthcare.
    218K
  • user avatar
    Justin Mares
    @jwmares
    Aug 7, 2021
    ~60 years after Singapore's independence from the UK, they are: - wealthier than the UK (per capita) - have better education + health outcomes - higher growth than the UK Likely a lot to learn from looking at Singapore's rise!