Jaqueline Amorim Takes Six-Month Ban After Ostarine Finding
The UFC strawweight accepted a six-month suspension tied to contaminated supplements. Her ban ends February 17, 2027.
By FightSplit Editorial Team · Published Oct 16, 2026

Jaqueline Amorim will sit out six months after Combat Sports Anti-Doping confirmed she accepted a sanction for an anti-doping violation. The 11-2 strawweight, who fights out of Fort Lauderdale, tested positive for low levels of ostarine — a banned anabolic agent — in two out-of-competition samples collected on July 29 and August 17, 2026.
Because the second sample was taken before Amorim had even been told about the first positive, CSAD rolled both findings into one case. Her suspension is backdated to August 17, the day her provisional ban kicked in, and it expires on February 17, 2027. For a fighter who's won nine of her 11 pro victories by submission, that's a chunk of prime time gone over trace amounts.
Why It's Only Six Months
The length of the ban matters here. CSAD determined the positives were consistent with contamination rather than deliberate use, pointing to Amorim's testing history, the low concentrations detected in both samples, and her use of multiple supplements that were never third-party tested or certified. Ostarine contamination in off-the-shelf supplements is a well-documented global problem, and the agency said the exposure gave her no meaningful performance edge.
Cooperation played a role too. CSAD said Amorim gave full and complete assistance during the investigation — something the policy lets the agency reward with a reduced or suspended penalty. Stack the lack of intent on top of the cooperation, and six months is what landed instead of the standard multi-year hit for an anabolic agent.
What It Means For Her Career
Amorim is unranked at 115 pounds but carries a dangerous grappling-first game — nine submission wins tell you exactly where her finishes come from. Her last outing was a first-round submission of Loma Lookboonmee, so she heads into this layoff off a win rather than a loss, which softens the blow.
The samples were collected by Drug Free Sport International and analyzed at the WADA-accredited SMRTL lab in Salt Lake City, which also ran the supplement testing in her case. Once February rolls around, Amorim is clear to return. The takeaway for the rest of the roster is the same as always: uncertified supplements remain the fastest route to an unwanted suspension.
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