An Australian consumer watchdog has found little difference between various types of cows milk sold in supermarkets.
Choice studied the chemical make-up of more than 100 different brands and types of milk sold in Australia.
It found no difference in quality based on price or nutritional supplements, the ABC reports.
The watchdog found there was no real benefit for most people from the more expensive brands with added minerals, vitamins or other extras.
Choice says even claims of the so-called health benefits of A2 milk, a different form of the protein beta-casein, have yet to be scientifically proven to the satisfaction of Food Standards Australia and New Zealand.
It concluded all milk is highly processed and any rule difference is whether it is low fat, skim, or full cream.