Dean Foods has been hit with a lawsuit by a group of regional farmers who accuse the US dairy giant of price fixing.

Some 16 dairy farmers across four US states claim Dean has used its network of milk co-operatives to run a monopoly in the south-east of the country.

Dean said it is studying the lawsuit but believes its action is line with competition regulations.

"The company is currently involved in a thorough review of the litigation," Dean told just-food today (11 July). "We are confident that our practices are fully compliant with antitrust laws."