unilad homepage
  • News
  • Film and TV
  • Music
  • Tech
  • Features
  • Celebrity
  • Politics
  • Weird
  • Community
  • Advertise
  • Terms
  • Privacy & Cookies
  • LADbible Group
  • LADbible
  • SPORTbible
  • GAMINGbible
  • Tyla
  • UNILAD Tech
  • FOODbible
  • License Our Content
  • About Us & Contact
  • Jobs
  • Latest
  • Topics A-Z
  • Authors
Facebook
Instagram
X
Threads
TikTok
YouTube
Submit Your Content
Woman who only ate beef for 8 years explains shocking physical and mental impact it had on her

Home> News> Health

Updated 21:04 16 Jun 2025 GMT+1Published 21:03 16 Jun 2025 GMT+1

Woman who only ate beef for 8 years explains shocking physical and mental impact it had on her

After 25 years of uncertainty around why she was experiencing severe autoimmune responses, Mikhaila Peterson tried 'the lion diet'

Joe Yates

Joe Yates

google discoverFollow us on Google Discover

Jordan Peterson's daughter has revealed the impact a strictly carnivorous diet had on her mental and physical wellbeing.

Mikhaila Peterson, of Toronto, Canada, was just 17 years old when she underwent hip and ankle replacement surgery following years of complaints.

The 33-year-old, who is the daughter of media commentator Jordan, appeared on the Joe Rogan podcast eight years ago, where she detailed the issues she was subject to due to autoimmune disorders - including arthritis.

At just two years old, her mom noticed that something was up as she explained how she was told that she 'started walking kind of funny', but a doctor dismissed the concern as 'growing pains'.

Advert

By seven she was diagnosed with 'juvenile rheumatoid arthritis', and had 37 joints affected. At 17, Mikhaila had no cartilage left in her hip and ankle.

Mikhaila Peterson, pictured pregnant in March, adopted a strictly carnivorous diet due to autoimmune responses she was having from eating certain foods (Instagram/mikhailapeterson)
Mikhaila Peterson, pictured pregnant in March, adopted a strictly carnivorous diet due to autoimmune responses she was having from eating certain foods (Instagram/mikhailapeterson)

With nothing medically working for her, she switched to an elimination diet - where she was able to cut out certain food groups, and from there she discovered that even rice and vegetables wasn't doing her body any favours.

The one thing that was though was beef.

Now, speaking on The Mikhaila Peterson Podcast, which of course she is the host of, she explained to clinical nutritionist Dr Josh Axe exactly that she began eating a beef-only diet in December 2017, and how it has helped her both physically and mentally.

"I started it thinking, I'll do this. I like, I know I don't react to beef. I'll do this for six weeks and reintroduce some foods and see what's bugging me and causing the autoimmune responses," she told her guest.

"And I started with olives, and they were like preservative free - really high quality olives. Just olives had a huge immune response - and it was scary enough that after that, I was like, 'I'm just gonna wait'.

Mikhaila is the daughter of Jordan Peterson (Faith Moran/Getty Images)
Mikhaila is the daughter of Jordan Peterson (Faith Moran/Getty Images)

"It took about two weeks for the arthritis symptoms to go away. It happened really quickly. It took about six weeks for me to stop crying in the morning because I was very depressed. I was off of antidepressants, but I was still not stable."

She continued: "And then five months later, my lingering anxiety went away, and since then, it's been me spending the last eight years trying to figure out why my body reacts to everything but beef.

"But I've popularized the lion diet because there seems to be thousands, tens of thousands of people with autoimmunity or psychiatric disorders that will go into remission only eating meat, which is nuts.

"Some of those people managed to bring food back and identify exactly what's causing it, but a lot of those really chronically ill people are stuck only eating meat happy because they're in remission."

Mikhaila's only incorporated the strict diet due to what she has described as likely an 'extreme gut permeability, leading to food sensitivities, leading to autoimmunity and psychiatric disorders'.

"So it's been a wild ride," she added.

Featured Image Credit: YouTube/PowerfulJRE

Topics: Mental Health, Health, Joe Rogan

Joe Yates
Joe Yates

Joe is a journalist for UNILAD, who particularly enjoys writing about crime. He has worked in journalism for five years, and has covered everything from murder trials to celeb news.

X

@JMYjourno

Advert

Advert

Advert

Choose your content:

4 hours ago
5 hours ago
6 hours ago
  • Jun Seong Yi
    4 hours ago

    New dinosaur species found in South Korea in groundbreaking discovery

    Scientists found the new dinosaur using X-ray scanning

    News
  • Getty Stock
    5 hours ago

    Doctor reveals the exact age you should 'permanently' stop drinking alcohol for an important reason

    A doctor has advised that there's a particular time of life to stop drinking

    News
  • Getty Stock
    6 hours ago

    The 6 most expensive medical procedures in the US without insurance ranked

    It's safe to say you won't want to be left needing these surgeries without medical insurance

    News
  • Getty Stock
    6 hours ago

    Hundreds sign up for 15-year-long cruise that costs half as much as the average house

    The cruise will last for a whopping 15 years

    News
  • Woman who only ate meat for an entire month reveals shocking impact on her body
  • Biohacker who wants to 'live forever' reveals shocking impact magic mushrooms had on his body
  • Woman who stopped 'doomscrolling' for 50 days reveals shocking impact to her brain
  • Therapist who voluntarily had an enema to test 'mental health benefits' reveals if it actually helped him