U.S. Sen. Mark Dayton (D-Minn.) introduced a bill in Congress Wednesday that would increase tariffs on milk protein concentrates — a move designed to protect domestic dairy prices.

Immediately, the National Milk Producers Federation voiced its support of the proposal, which would restrict the unabated flow of imported milk proteins into this country.

Milk protein concentrates are a byproduct of milk production. Unlike most dairy products, they face few import restrictions. This allows exporters to send MPCs into the country far more cheaply than milk. They can be used in products such as cheese and ice cream.

Dayton’s bill would treat MPCs the same as other dairy products when it comes to import restrictions.

Associated Press