Federal health officials are taking a closer look at flavors in tobacco products that appeal to young people, particularly menthol-flavored cigarettes, which have escaped regulation despite nearly a decade of government scrutiny.

The Food and Drug Administration issued a call Tuesday for more information about flavored cigars and electronic cigarettes, which currently have no flavor restrictions. Extra attention will fall on menthol, the only cigarette flavor permitted by Congress under the 2009 law that brought tobacco under FDA regulation. The FDA’s past efforts to begin regulating the ingredient have been stalled by industry.

Studies have shown the minty flavor appeals more to younger smokers. More than 50 percent of underage smokers reported smoking menthols in a government survey, compared with only 36 percent of adult smokers.