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Vince Vaughn<\/strong> struggled for years with yo-yo diet issues, but he\u2019s lost the weight and kept it off thanks to the influence of his no-nonsense wife Kyla Weber<\/strong>, an insider exclusively reveals to Life & Style<\/em>.<\/span><\/p>\n \u201cHe\u2019s been up and down on the scales for as long as he\u2019s been famous,\u201d the source says, \u201cbut a healthy diet and workout plan under the firm guidance of his loving wife, Kyla, have kept him consistent.\u201d\u00a0<\/span><\/p>\n The Wedding Crashers<\/em> star, 54, managed his weight gain and loss for years on his own. In his film, Swingers<\/em>, he was forced to drop weight to reflect his character\u2019s progression throughout the movie. But that was back in 1996, when he was only 26. He said at the time that he chose to drop nearly 30 pounds by working out hard, instead of changing his dietary habits.\u00a0<\/span><\/p>\n Afterwards, the actor gained nearly all the weight back and then some before starring in Jurassic Park: The Lost World<\/em>.<\/span><\/p>\n It\u2019s been the same story with Vince ever since, as he gains and loses weight for roles, premieres, off-seasons and events, but after marrying Calgary native Kyla, 45, in 2010, he\u2019s evolved his weight loss strategy and has instead opted to focus on changing his diet as he gets up there in age.<\/span><\/p>\n \u201cHe\u2019s slimmed down and he\u2019s keeping the weight off because Kyla is telling him to lay off the bread and burgers,\u201d the source says.<\/span><\/p>\n The Breakup<\/em> actor<\/a> is set to star in his new series on Apple TV+, Bad Monkey<\/em>, in which he plays a former detective turned restaurant inspector.\u00a0<\/span><\/p>\n With a return to the small screen looming, Vince finally decided to give up junk food and opt for healthier alternatives.<\/span><\/p>\n \u201cLate-night snacking has come to an end,\u201d the source continues. \u201c[Kyla] doesn\u2019t stand for it anymore.\u201d\u00a0<\/span><\/p>\n