While many restaurants are making the change themselves, a bill in the Maine Legislature proposes to mandate a ban on trans fats. Rep. David Webster told Maine Public Radio he wants Maine to join a national movement to eliminate the use of trans fat in foods. The Freeport Democrat points to studies that link the consumption of high trans fat foods and cardiovascular disease.Many national restaurant chains in Maine are voluntarily eliminating trans fat from their menus in response to health concerns. Opponents to Webster’s bill, which would take effect next year, say the law would be burdensome to small business owners. The Health and Human Services Committee held a hearing on the bill Monday.