TMZ reports that Patricia Krentcil had a seizure at a rehab center in Florida Saturday morning.
She was rushed to the hospital and recovered in just hours.
Krentcil is undergoing a 30-day treatment for alcoholism.
A grand jury refused to indict Krentcil in February on a charge she took her young daughter into a tanning booth with her. New Jersey state law bans children under 14 from using tanning salons.
The 44-year-old Nutley woman was arrested last April and charged with child endangerment for allegedly bringing her then-5-year-old daughter into a tanning booth.
Police became involved after school officials noticed burns on Krentcil's daughter's legs. Krentcil said that her daughter's burn came from the sun on an unusually warm day and that she would never take the girl into a tanning booth.
The arrest generated wide publicity partly because of Krentcil's deep tan and professed love of tanning salons. Her instant fame even extended to a toy company making a "tanoerexic" action figure based on her.
The arrest and subsequent media frenzy also brought unwanted attention to the northern New Jersey tanning salon that Krentcil had frequented, and the salon incurred fines unrelated to the allegation against Krentcil.