I always mix it with salt. I prefer blocks as my cattle are are used to blocks. Just pick up regular mineral blocks and replace with himag when needed. Blocks can be hard to get sometimes though. Couldn't find them locally at all this year. I put high mag in empty protein tubs, witch the cows are used to and mixed a few range cubes in. They see the tubs go check them out, root around for the cubes.I feel like their getting some mineral in process. Also having clover in pasture helps provide magnesium. I really wish someone would make a low protein himag tub with the bloatgaurd chemical in it, That would be perfect for me