Lohan has been the subject of much media speculation in recent weeks, after she was photographed looking painfully thin.
Michael Lohan is currently in prison in New York State on charges of drink driving and assaulting his brother-in-law at a family party. He is also estranged from Lindsay's mother Dina--which he blames for their daughter's poor health.
He tells PageSix.com, "People wonder why Lindsay's so thin. It's because of all this garbage between her mother and me. She's beaten up inside. It's ripped our whole family apart."
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