Jon Lipsey

Jon Lipsey is the co-founder and Content Director of Unfiltered. The most successful UK editor in the history of Men's Fitness magazine, he has spent more than two decades working in health, fitness, longevity and human performance. He has interviewed leading figures in sport, politics and business, such as Pelé, Lord Coe and Bryan Johnson. He speaks at industry events including The Longevity Show and advises health brands on strategy and storytelling.

113 articles published Follow:

testosterone carole hooven harvard cancelled

POLITICS

Carole Hooven on testosterone, the Harvard cancellation, and what the science actually says

In July 2021, Carole Hooven went on Fox & Friends to discuss an article in The Free Press about medical schools moving away from the words male and female. She defended the terms. She said biologists use them because they are scientifically accurate, and that respecting people's gender identities does not require abandoning scientific language.…

ByJon LipseyMay 12, 20260Comments

stacy sims relative energy deficiency reds

HEALTH

Relative energy deficiency in sport is a male problem too. The medical literature is only starting to notice

For most of the time the medical community has been paying attention to relative energy deficiency in sport, the condition has been understood as a women's problem. The original framework was the female athlete triad, identified in the 1990s — the cluster of disordered eating, menstrual dysfunction and low bone mineral density that emerged in…

ByJon LipseyMay 12, 20260Comments

HEALTH Explainer

Training on the oral contraceptive pill: what it does, what to adjust, and what happens when you come off

The oral contraceptive pill is one of the most widely used pharmaceuticals in human history. Tens of millions of women take it daily, mostly for contraception, sometimes for symptom management around heavy menstrual bleeding, polycystic ovary syndrome or endometriosis. The cultural assumption that travels with it — that the synthetic hormones it delivers are functionally…

ByJon LipseyMay 12, 20260Comments

BUSINESS

Why this longevity VC prefers emails over pitch decks

Stefan Eckhardt doesn't think much of pitch decks. He'd rather get a well-written email. And when a working prototype arrives in a founder meeting, what interests him isn't what it does — it's what it tells him about how the founders think. Eckhardt is managing director of Callisto Health, the Berlin-based health-tech investor that led…

ByJon LipseyMay 11, 20260Comments

TRAINING Icon

Steve Cook on steroids: the four-or-five-compound stack he refused to take

For most of the men who reach the top of competitive physique sport, the question of what to take is not really a question. It is an entry fee. The line between a clean athlete and a chemically optimised one runs not through the locker room but through the wallet of whoever is willing to…

ByJon LipseyMay 6, 20260Comments

TRAINING Icon

Steve Cook on building a body, walking away, and the cost of optimisation

Most former IFBB Men's Physique competitors do not talk on the record about why they stopped competing. Steve Cook does. The conversation below, recorded in January 2024, when Cook was 38, is his retrospective on the trade he refused to make: the four-or-five-compound stack required to win at Olympia level, and the realisation that becoming…

ByJon LipseyMay 6, 20260Comments

TRAINING

The Athletes walking into the Enhanced Games, and the ones who almost did

Most of the athletes who said yes to the Enhanced Games were referred by other athletes who had already said yes. This is one of the things Rick Adams tells you that almost no one in the wider coverage of the games has bothered to mention. More than half of the 40-plus athletes preparing to…

ByJon LipseyMay 6, 20260Comments

Enhanced Games Athletes Maximilian Martin

HEALTH Vanguard

Inside the Enhanced Games training camp: what happens when you optimise everything at once

Several weeks out from the inaugural Enhanced Games, in a five-star longevity resort on the outskirts of Abu Dhabi, fifty elite athletes are doing something almost no professional in their disciplines has ever done. They are training without worrying about money. They are eating without worrying about cost. They are recovering with access to medical…

ByJon LipseyMay 5, 20260Comments

HEALTH Investigation

Are peptides the next GLP-1? The market says yes. Science is less certain

Reviewed by Dr Dan Reardon, NHS A&E doctor with a specialist interest in metabolic health. Published 23rd April 2026. Most peptides being sold in the wellness market today have not been through the clinical trials required to prove they produce a meaningful effect in humans. A small number (most notably the GLP-1 class and the…

ByJon LipseyApril 23, 20260Comments

BUSINESS Vanguard

Rick Adams: the Olympic insider leading the Enhanced Games

If you had to design the person you'd want on your side if you were an athlete about to walk into the most scrutinised sporting arenas of the modern era, you'd probably end up with someone who looked a lot like Rick Adams. Six Olympic Games. Fourteen years inside the American Olympic machine. Former Chief…

ByJon LipseyApril 21, 20260Comments

Jon Lipsey

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