Mikhaila Peterson, now known as Mikhaila Fuller, is a Canadian podcaster, entrepreneur, and diet researcher born on January 4, 1992, in Toronto, Ontario. She is the daughter of clinical psychologist and author Jordan Peterson.
She co-founded Peterson Academy in 2024 and developed the Lion Diet to manage her own severe autoimmune conditions.
Who is Mikhaila Peterson?
Mikhaila Peterson is a Canadian-born podcaster, diet researcher, and entrepreneur who built a public career out of her personal health journey.
Her severe childhood illnesses led her to develop the Lion Diet, a strict elimination protocol based on ruminant meat, salt, and water.
She hosts The Mikhaila Peterson Podcast, which covers health, psychology, relationships, and culture. The show features experts, scientists, and public figures debating contentious topics through her Opposing Views series.
Mikhaila serves as CEO of Peterson Academy, an online education platform she co-founded with her father in 2024.
She also runs Fuller Health, a supplement company, and the Fuller Research Foundation, a 501(c)(3) nonprofit funding clinical research into the Lion Diet. Her personal life and health story have attracted millions of followers across social media.
Early Life of Mikhaila Peterson
Mikhaila grew up in Toronto, Ontario, in a household shaped by her father Jordan Peterson’s academic and intellectual career.
She has one younger brother, Julian Peterson. Interestingly, her parents named her after Mikhail Gorbachev, the former Soviet leader.
Her childhood included Russian influences. She has described Soviet posters on the walls and dinner table conversations about Russian history as normal parts of family life.
She read books like Atlas Shrugged and The Master and Margarita by the time she reached grade five.
Her health problems began early and shaped everything that followed.
At age seven, doctors diagnosed her with juvenile rheumatoid arthritis, which caused severe joint pain.
By age twelve, she received a diagnosis of depression, and at twenty-one she was diagnosed with idiopathic hypersomnia. She has also spoken publicly about bipolar disorder and other conditions she managed during her teens and early twenties.
These health struggles pushed her toward experimenting with diet as a treatment. By her mid-twenties, she began placing herself in remission through strict dietary changes, which eventually became the Lion Diet.
Mikhaila Peterson Age
Mikhaila Peterson is 34 years old as of 2026, born on January 4, 1992. Her zodiac sign is Capricorn.
She founded Peterson Academy at age 32, bringing higher education to over fifty thousand students within the first year of the public beta launch. Her health advocacy career spans more than a decade of public writing, blogging, and podcasting.
Mikhaila Peterson Ethnicity and Nationality
Mikhaila Peterson holds Canadian nationality, born and raised in Toronto, Ontario. After her marriage to Jordan Fuller, she relocated to the United States.
Her ethnic background is of European descent, with her father Jordan Peterson’s family having roots in Alberta, Canada. Her upbringing blended Canadian culture with heavy Russian intellectual influences, which she has discussed in interviews.
Her family’s interest in Russian history and politics shaped her early reading habits. Both of her parents are Canadian, with her mother, Tammy Roberts, having worked as a massage therapist.
Mikhaila Peterson Height and Weight
Mikhaila Peterson stands 5 feet 8 inches tall, which equals approximately 1.73 meters. Her weight is not publicly confirmed.
She has maintained a physically active lifestyle alongside her carnivore dietary protocol. Her stage presence in podcast interviews and speaking engagements reflects a tall, slender build that she has maintained on the Lion Diet for several years.
Mikhaila Peterson Education
Mikhaila pursued multiple programs across different institutions. She attended Concordia University in Montreal, where she studied Psychology and Classics.
She then enrolled at George Brown College Continuing Education in Toronto, completing a makeup artist specialty course from 2013 to 2014.
Later, she attended Ryerson University in Ontario, where she earned a bachelor’s degree in Biological and Biomedical Sciences between 2014 and 2016. Her science background at Ryerson directly informed her later diet research and health advocacy work.
Her academic journey across three institutions reflects her broad interest in both the humanistic and scientific approaches to health.
Mikhaila Peterson Career
Mikhaila built her public profile through years of blogging and social media content about diet and health. She began sharing her experiences online through a blog called Don’t Eat That, documenting which foods caused flare-ups and which helped her condition.
Her transparency attracted a growing audience of people dealing with similar autoimmune and mood disorders.
The Lion Diet and Early Blogging
In 2017, Mikhaila developed the Lion Diet, a plant-free ketogenic elimination protocol built around ruminant meat, salt, and water. She created it to address lingering health symptoms that remained even after earlier dietary experiments.
The diet has since helped tens of thousands of people manage autoimmune conditions, psychiatric disorders, and food sensitivities, according to her platform.
She launched liondiet.com to offer guides, research, and community resources. The site remains free for users seeking information about the protocol.
From 2018 onward, she also took on the role of managing her father Jordan Peterson’s brand, overseeing his PR, social media, and strategy.
The Mikhaila Peterson Podcast and Media Career
In 2020, Mikhaila launched The Mikhaila Peterson Podcast. The show covers health, relationships, culture, and psychology. Her recurring series, Opposing Views, brings in two experts holding opposing positions on a topic to debate on equal footing.
She designed this format to train listeners in critical thinking rather than push a single verdict.
The podcast grew quickly and built a substantial following. She also operates a YouTube channel where she posts podcast episodes and health content.
In 2022, she founded Fuller Health, a supplement company focused on pure, non-toxic formulations. The first product, a supplement called After Party, targets hangover symptoms by supporting the body’s breakdown of acetaldehyde.
The company’s philosophy rejects fillers and unnecessary additives.
In 2023, she launched biotoxin.com to help people navigate illnesses caused by environmental toxins such as mold.
Peterson Academy and Research Foundation
In 2024, Mikhaila co-founded Peterson Academy alongside her father, with an initial investment of $3 million. The platform offers pre-recorded eight-hour courses taught by university-level professors across subjects including humanities, finance, health, and science.
Its stated goal is to make higher education ideology-free and affordable. The public beta launched in September 2024, and over fifty thousand students enrolled within the first months.
Mikhaila serves as CEO of the academy. Her husband, Jordan Fuller, joined as Chief Operating Officer.
In 2025, she launched the Fuller Research Foundation, a 501(c)(3) nonprofit. The foundation funds the first randomized controlled clinical trial examining the effectiveness of the Lion Diet for people with inflammatory bowel disease or rheumatoid arthritis.
This trial, running in 2026, marks the first peer-reviewed investigation into the diet’s therapeutic benefits.
Also in 2026, she published the website prescribed-harm.com.
The site raises awareness about long-term neurological dysfunction caused by commonly prescribed psychiatric medications, following her father’s recurrence of akathisia from previous medication use.
Mikhaila Peterson Husband
Mikhaila Peterson married Jordan Fuller in a legal ceremony on December 22, 2021, at the Graceland Wedding Chapel in Las Vegas. Days later, the couple held a larger formal celebration on May 28, 2022, at the Ritz-Carlton Half Moon Bay in California.
Mikhaila’s father, Jordan Peterson, officiated the ceremony.
The couple announced their engagement in March 2022 after Mikhaila shared the news on Instagram, writing that she had become engaged to the love of her life.
Jordan Fuller is an entrepreneur and the Chief Operating Officer of Peterson Academy.
He is known for his Christian faith and maintains a lower public profile than his wife. Fuller adopted the meat-based elimination diet himself after they got together and has been publicly supportive of Mikhaila’s health advocacy.
Mikhaila Peterson Children
Mikhaila is a mother of four children. Her first daughter, Elizabeth Scarlett Peterson, was born on August 6, 2017, during her marriage to her first husband, Andrey Korikov.
After Mikhaila married Jordan Fuller, the couple had additional children together. Their son George Waddell was born in December 2023. Their daughter Audrey Blake was born in June 2024.
On July 28, 2026, Mikhaila gave birth to her fourth child, a son named Francis Jordan Fuller. She announced his arrival on X, noting he was born at 11:14 p.m. and weighed 8 lbs 1 oz.
Mikhaila frequently references her children in her public content. Her discussions about raising children on a carnivore-based diet have generated significant public interest.
Mikhaila’s First Marriage to Andrey Korikov
Mikhaila’s first husband was Andrey Korikov, a Russian-born businessman. The two met at Ryerson University in Ontario while Mikhaila was pursuing her degree in Biological and Biomedical Sciences.
Andrey Korikov competed in the 1988 Summer Olympics in the men’s coxed pair rowing event, representing the Soviet Union. The couple married in July 2017 and had their daughter Elizabeth Scarlett that same year.
Their relationship faced significant strain over subsequent years. In 2021, Mikhaila publicly announced their divorce on social media. The couple has continued co-parenting Elizabeth since separating.
Mikhaila Peterson Net Worth
Mikhaila Peterson’s estimated net worth is $3 million as of 2026. Her income comes from multiple streams, including her podcast, YouTube channel, speaking engagements, and the supplement company Fuller Health.
Peterson Academy, which she co-founded with an initial $3 million investment and now reports over fifty thousand enrolled students, represents a significant business venture.
Brand partnerships with companies including PaleoValley, NordVPN, and truLOCAL have contributed to her earnings. She also generates income through consulting and her liondiet.com platform.
Her wealth also reflects her role in managing Jordan Peterson’s brand since 2018, which included overseeing PR, strategy, and social media for one of Canada’s most prominent public intellectuals.
Mikhaila Peterson Social Media
Mikhaila is active across multiple platforms. She posts on Instagram as @mikhailapeterson. She also posts on X (formerly Twitter) at @MikhailaFuller. Her TikTok account is @mikhailapeterson.
Her YouTube channel hosts episodes of The Mikhaila Peterson Podcast and original health content. She also maintains a Facebook page for the podcast under the name mikhailapetersonpodcast.
Her official website at mikhailapeterson.com serves as the central hub for her podcast, business ventures, and health resources.
The Bottom Line
Mikhaila Peterson launched Peterson Academy in 2024 alongside her father, attracting over fifty thousand students within months of the public beta launch.
The same year, she also oversaw the start of the first clinical trial investigating the Lion Diet’s effectiveness for autoimmune disease.
Her background as a person who spent years managing juvenile rheumatoid arthritis, depression, and hypersomnia gives her health advocacy a personal foundation that resonates with a large audience. She named the Lion Diet in 2017 and has built multiple companies and a research foundation around it.
As of 2026, Mikhaila balances running Peterson Academy as CEO, hosting her podcast, funding clinical research through the Fuller Research Foundation, and caring for four children with her husband Jordan Fuller.
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