A key use for MPC and MPI is the development of high-protein nutrition bars (>15 g protein per serving). A documented issue with using high levels of functional dairy and nondairy proteins as an ingredient in bars is that they affect texture, generally hardening the bar during shelf-life (Loveday and others 2009). Typically food formulators will use a combination of different sources of protein to address bar hardness (Loveday and others 2009). Specialized MPCs have been developed where the functionality has been changed either through processing changes or partial hydrolysis in order to better control this phenomenon, but new ways are always being examined, such as the use of high-pressure processing, extrusion, and hydrolysis (Banach 2012; Udabage and others 2012; Banach and others 2014).