Weight-loss joke turns serious as 'cyclospora skinny' trend fuels health warnings

A social media trend dubbed "cyclospora skinny" is prompting warnings from medical professionals as Arizona health officials investigate 36 locally acquired cases of the intestinal illness.

Videos and jokes referencing the outbreak have spread across social platforms, with some users suggesting the parasite could be used as a rapid weight-loss method.

Medical experts emphasize that infection from Cyclospora cayetanensis, a foodborne intestinal parasite, is a painful illness.

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"Getting any kind of illness to purposely cause something like that is just a bad idea," Dr. Andrew Carroll, president of IntraCare and a physician in Chandler, Arizona, told Fox 10. "Plus, cyclosporiasis can be deadly. There are folks ending up in the hospital for long periods of time."

Cyclospora cayetanensis is a microscopic foodborne parasite that causes the intestinal illness cyclosporiasis, according to Mayo Clinic.

The parasite spreads through food or water contaminated with fecal matter, often linked to fresh produce such as berries, basil, cilantro and bagged salad mixes.

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The parasite infects the small intestine, causing prolonged, watery and sometimes explosive diarrhea, loss of appetite, abdominal cramping and severe fatigue.

Infectious disease specialists emphasize that while weight loss can occur with cyclosporiasis, it results from fluid loss, muscle wasting and nutrient malabsorption — not healthy fat reduction.

Intentionally exposing yourself to Cyclospora — or ignoring symptoms of infection — can carry serious health risks, according to Cleveland Clinic.

Left untreated, a Cyclospora infection can persist for weeks or even months, cycling through periods of apparent improvement followed by relapses.

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Cyclospora cannot be detected through standard bacterial stool cultures and requires a specific laboratory test ordered by a physician.

Unlike many common stomach bugs that resolve on their own, severe or persistent Cyclospora infections typically require a prescription antibiotic, most often trimethoprim-sulfamethoxazole, to fully eliminate the parasite.

Severe diarrhea and vomiting can also lead to dehydration, electrolyte imbalances and complications that are especially dangerous for children, older adults and people with weakened immune systems, experts warn.

"With diarrhea, if you’re not able to control that part of it, you’re going to lose a lot of electrolytes, so you’re going to have problems with muscle cramps and headaches and all those sorts of things," Carroll said.

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"We’re really aware of dehydration in this state; you don’t want to get to the state where your heart just can’t pump enough blood because there is no water in there."

Medical professionals urge the public not to view parasitic infections as a weight-loss shortcut. Instead, experts from Mayo Clinic and Cleveland Clinic recommend practicing safe food handling and seeking medical attention for persistent gastrointestinal symptoms.

"People who are influencers on social media, a lot of people listen to them," Carroll said. "There’s millions of followers for these people and even the most off-colored comment, or meant to be funny, could be considered something serious."

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"Especially to someone who might be dealing and struggling with their weight; they might think, ‘Hey, it might be a good idea,’ and it’s never a good idea."