Most Americans want to lose weight, a new CBS News poll finds – but they do not favor a tax on junk food and do not believe that such a tax would help lower obersity.

The poll results reveal that the vast majority of Americans believe that obesity can be controlled. They do not feel, however, that the government should be imposing a tax on the foods most likely to make them obese. Sixty percent say they oppose such a tax, while 38 percent say it's a good idea.