The 90-Day Carnivore Challenge. A structured animal-based protocol from a medical doctor who has treated patients this way for over a decade.
Dr. Anthony Chaffee, MD, is an American physician practising in Australia and host of The Plant Free MD podcast. He began university at age 16, studying Molecular and Cellular Biology before earning his medical degree from the Royal College of Surgeons in Ireland.
A former All-American and professional rugby player, Dr. Chaffee first adopted a carnivore diet during his athletic career, where he observed significant improvements in performance and recovery.
He now focuses on treating chronic disease and optimising metabolic health through nutrition and lifestyle interventions in his medical practice.
The argument, in short.
Our stomach pH sits around 1.5, the same range as scavenging predators. Five separate organs work in concert purely to absorb fat. Our appendix is a shrivelled cecum, the fibre-fermenting organ we stopped using millions of years ago.
Plants cannot run or fight, so they use chemistry. Brassicas, nightshades and legumes carry defence compounds, hormone disruptors and nutrient blockers that your body was never adapted to process.
Remove the input and the condition improves. That is a toxicity pattern, not a disease pattern. It is why autoimmune conditions, inflammation and metabolic dysfunction so often resolve on an animal-based diet.
Primary metabolic state
Fed, glucose-dependent
Insulin
Chronically elevated
Leptin signal
Blocked, constant hunger
Metabolic rate
Roughly 300 kcal per day lower
Plant defence compounds
Daily exposure
Nutrient absorption
Blocked by fibre and protease inhibitors
Based on Dr. Chaffee's clinical experience and the research he presents on The Plant Free MD.
Live Q&A calls with Dr. Chaffee, three times every month
Full recordings of every call, watch any time
Over 70 course videos covering the entire protocol
Private global community chat, active every day
Topic-specific rooms for troubleshooting your sticking points
Complete resource library of studies, guides and protocols
Voting rights on future guests and topics
10% off private consultations with Dr. Chaffee
Day 21 and the joint pain is basically gone.
Best ribeye ratio for someone who gets full fast?
Bloods back — triglycerides halved since March.
Week one headaches. More salt, right?
Dr. Chaffee — speakingone time, full 90 days
Or 3 payments of $400
Private 1:1 messaging with Dr. Chaffee is available to members inside the community.
Enrolment opens in cohorts. Join the current intake.
“Three and a half months in: no anxiety, no brain fog, no sugar cravings, and I wake at 6am full of energy.”
“100 days carnivore. I am a butcher, so I had every excuse to get this wrong. The photos speak for themselves.”
“Major improvements in 48 hours. I did not believe it would move that fast.”
Over 70 lessons, structured across five modules.
