United Kingdom, May 18 -- Jason Biggs' dramatic weight loss and mounting career pressures are said to have created tension in his marriage to Jenny Mollen before the couple confirmed they were divorcing after 18 years together.

The 48-year-old American Pie actor and Jenny, 46, announced their separation on Thursday (14.05.26) following months of speculation about difficulties in their relationship.

Now, according to a report by the Daily Mail, Jason's recent health transformation, combined with the stress of directing his first feature film, contributed to strain between the pair.

A source told the publication: "Jason definitely has changed since his weight loss transformation. He lost a lot of weight and it definitely helped boost his...