A federal panel that helps set federal dietary guidelines is recommending Americans eat less meat because it’s better for the environment, sparking outrage from industry groups representing the nation’s purveyors of beef, pork and poultry.

The Dietary Guidelines Advisory Committee, a federally appointed panel of nutritionists created in 1983, decided for the first time this year to factor in environmental sustainability in its recommendations. They include a finding that a diet lower in animal-based foods is not only healthier, but has less of an environmental impact.

The meat industry is lashing back, contending the panel has neither the authority nor the expertise to make such a judgment.

“When you talk about the lens of the dietary guidelines it’s just not appropriate for the advisory committee to enter that conversation when they were asked to look at nutrition and health science,” said Kristina Butts, executive director of legislative affairs for the National Cattlemen’s Beef Association.