Reuters
May 19, 2011: Actress Mischa Barton arrives for amfAR's Cinema Against AIDS 2011 event in Antibes during the 64th Cannes Film Festival.
MIAMI -- Mischa Barton is in fine form during the holidays, thanks to a new program of healthy eating and running, she told friends.
The New York Post reported the actress, whose fluctuating weight and questionable fashion choices have been well documented since her breakout role in the popular defunct series "The O.C.," flaunted a slimmer, toned shape in a skimpy black bikini while hitting the beach over the holidays in Miami.
Barton told friends that her key to staying slim is "eating really healthy, keeping a mostly vegan diet and running."
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