Although the Legislature repealed the state snack tax three years ago, a health panel wants lawmakers to consider imposing what could be construed as a "fat tax" on certain products perceived as contributing to obesity in Maine.During their Tuesday morning meeting, the 28-member Commission to Study Public Health affirmed more than two dozen recommendations to combat obesity through public policy and legislation. In addition to four legislators, the commission's members represent a range of interests, including health care, the soft-drink industry, physical education, dentistry, school administration, health insurance, the dairy industry and food-service workers.