Olympic gold medalist Caitlyn Jenner argued against transgender athletes born biological males participating in women’s sports Wednesday as the NCAA board reviews its policy following the success of trans swimmer Lia Thomas.

“We need to protect women’s sports,” Jenner told “America Reports” co-host Sandra Smith.

Noting that suicide is much higher in the transgender community than in the general public, Jenner said she respects University of Pennsylvania swimmer Thomas’ decision to live her life authentically. However, the retired decathlete said it also comes with responsibility and some integrity.

“I don’t know why she’s doing this,” Jenner said. Thomas competing in women’s sports, she said, is not good for the transgender community.

“She knows when she’s swimming she’s beating the competition by two laps. She was born a biological boy,” Jenner pointed out. “She was raised as a biological boy. Her cardiovascular system is bigger, her respiratory system is bigger, her hands are bigger, she can swim faster. That’s a known.”

 OLYMPIC GOLD MEDALIST AND TITLE IX ADVOCATE CALLS FOR REEVALUATION OF TRANSGENDER POLICIES

PHILADELPHIA, PA – JANUARY 8:  Lia Thomas of the Pennsylvania Quakers after winning the 500 meter freestyle event during a tri-meet against the Yale Bulldogs and the Dartmouth Big Green at Sheerr Pool on the campus of the University of Pennsylvania on January 8, 2022 in Philadelphia, Pennsylvania. (Photo by Hunter Martin/Getty Images)

Transgender women athletes who went through typical male puberty during adolescence still hold a competitive edge over their biologically female competitors, and one year of testosterone suppression therapy as required by the National Collegiate Athletic Association (NCAA) isn’t enough to ensure fairness in women’s sports, some scientists argue.

The scientific community is conflicted over the issue of fairness in women’s sports as trans athletes like Thomas make headlines for dominating female competitors. Women’s sports advocates and parents at Penn have recently spoken out against the NCAA and its rules on transgender student-athlete participation, which require trans women athletes to undergo at least a year of testosterone suppression treatment before competing on a women’s team.