New husband Mattia Dessi was among those who begged the Danish model/actress to seek help for alcoholism, according to the National Enquirer.
Nielsen reluctantly checked into the Cri-Help facility on July 9.
Insiders tell the publication Nielsen has been fighting a serious alcohol problem for years. She appeared drunk on reality TV show The Surreal Life in 2005.
A source says, "It took an ultimatum from her family to get through to Brigitte--either she gets help or she loses her loved ones' support."
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