One hypothesis suggests that there's a finite amount of protein that the body can actually use.
Most Australians have double the recommended intake of protein already, meaning protein shakes are probably superfluous for most.
Protein supplements are all the rage for fitness fanatics and those hoping to boost their muscles – but do they contain as much protein as they claim to?
The decision to use protein supplements is based more on marketing claims than anything else. They offer few real performance benefits that an athlete’s normal diet isn’t already delivering.