Move over, high-protein and organic milks. There is a new value-added milk in the dairy case. Starting in April, Australia’s a2 Milk Co. will begin selling milk with what it calls a “digestive advantage” in California supermarkets and independent stores.

The milk is available in whole, 2%, 1% and nonfat varieties. The suggested retail price is $4.50, which is more than a store brand of conventional milk but less than organic milk in some markets. The U.S. weighted average advertised price of a half-gallon of organic milk in 2014 was $3.38, according to USDA’s Dairy Market News. (Dairy Foods sees current prices of greater than $5 in the Chicago area.) A gallon of whole milk retailed for $3.758 in January, according to the Bureau of Labor Statistics.