(CNN)Olympic runner Shelby Houlihan said she has been banned from the sport for four years following a positive test for anabolic steroids that she attributes to eating a pork burrito.

Houlihan said she was devastated to learn of the suspension from the Athletics Integrity Unit (AIU), an independent body that combats doping, after she tested positive for nandrolone.

Houlihan said in a post on Instagram Monday that a burrito she ate before the test contained pig organ meat, or offal, which she said can lead to a positive test for nandrolone. A study funded by the World Anti-Doping Agency (WADA) found trace amounts of nandrolone can be found in that kind of meat and warned about the possibility of a false positive.

More in category

Progressives camp outside Capitol to protest evictions
July 31, 2021The Hill
Progressives camp outside Capitol to protest evictions
Gwen Berry, Olympic Record, Family, Details for Hammer Thrower
July 31, 2021Newsweek
Gwen Berry, Olympic Record, Family, Details for Hammer Thrower
Mixed Day at the Olympics: Relays on Track and in Pool, Judo and Triathlon
July 31, 2021Newsweek
Mixed Day at the Olympics: Relays on Track and in Pool, Judo and Triathlon
MyKayla Skinner, The Gymnast Replacing Simone Biles in Vault for Team USA
July 31, 2021Newsweek
MyKayla Skinner, The Gymnast Replacing Simone Biles in Vault for Team USA
Katie Ledecky Insists She'll Compete in 2024 After 800m Triumph
July 31, 2021Newsweek
Katie Ledecky Insists She'll Compete in 2024 After 800m Triumph
You can currently shop bras at Macy's for less than $20
July 30, 2021USA Today
You can currently shop bras at Macy's for less than $20
Tokyo Olympics live updates: Women's 100m could be historic, USA baseball in action and Djokovic falls
July 31, 2021USA Today
Tokyo Olympics live updates: Women's 100m could be historic, USA baseball in action and Djokovic falls
Olympian Kayla Miracle breaking barriers in wrestling and as LGBTQ+ pioneer
July 31, 2021USA Today
Olympian Kayla Miracle breaking barriers in wrestling and as LGBTQ+ pioneer
Simone Biles withdrew from two individual gymnastics events
July 31, 2021CNN
Simone Biles withdrew from two individual gymnastics events
Olympics events to watch if you're in the US
July 31, 2021CNN
Olympics events to watch if you're in the US
Simone Biles withdraws from two more Olympic events
July 30, 2021CBS
Simone Biles withdraws from two more Olympic events
Lollapalooza sparks COVID worries as concertgoers flock to Chicago
July 30, 2021CBS
Lollapalooza sparks COVID worries as concertgoers flock to Chicago
DOJ says IRS must give Trump's tax returns to Congress
July 30, 2021CBS
DOJ says IRS must give Trump's tax returns to Congress
Hunter Biden calls art exhibit 'pretty courageous' despite ethics questions
July 30, 2021Newsweek
Hunter Biden calls art exhibit 'pretty courageous' despite ethics questions
Adorable 'Gymnastics Cat' Delights the Internet with Olympics Reaction
July 31, 2021Newsweek
Adorable 'Gymnastics Cat' Delights the Internet with Olympics Reaction
Novak Djokovic Pulls out of Doubles Match Missing Last Chance of 2020 Medal
July 31, 2021Newsweek
Novak Djokovic Pulls out of Doubles Match Missing Last Chance of 2020 Medal
Biden's bipartisan deal faces Senate gauntlet
July 31, 2021The Hill
Biden's bipartisan deal faces Senate gauntlet
A Research Vessel Found SpongeBob Lookalikes A Mile Under The Ocean's Surface
July 31, 2021NPR
A Research Vessel Found SpongeBob Lookalikes A Mile Under The Ocean's Surface
American BMX Racer Connor Fields Remains In Tokyo Hospital After Olympic Crash
July 31, 2021NPR
American BMX Racer Connor Fields Remains In Tokyo Hospital After Olympic Crash
Two Georgian judo athletes ejected from Olympics after going on Tokyo sightseeing trip
July 31, 2021USA Today
Two Georgian judo athletes ejected from Olympics after going on Tokyo sightseeing trip
Tokyo Olympics live updates: Women's 100m, Team USA baseball vs. Korea to close out Saturday; Novak Djokovic fails to medal
July 31, 2021USA Today
Tokyo Olympics live updates: Women's 100m, Team USA baseball vs. Korea to close out Saturday; Novak Djokovic fails to medal