Whey protein supplementation also comes with a few down sides. Unfortunately quality whey protein created from one of the processes mentioned above (especially ion exchange), are the most expensive proteins on the market, maximuscle promax They can be up to ten times the cost of other protein sources and even four to five times more expensive than regular whey proteins, which for some makes usage in viable amounts cost prohibitive. Some companies market their whey as a cheaper alternative, however, often this is due to the cheaper manufacturing techniques and the majority of their product does not offer anywhere near the same health benefits. They may also be much higher in lactose, sodium, fat and possibly even cholesterol.