Hello! I have 2 horses - a 13 y/o Arabian mare and a 10 y/o Haflinger/TB cross gelding. They both are stall boarded, but are out in the pasture from 6:30 am - dusk everyday with plenty of hay in the winter paddocks and grass in the summer. We give them a mineral block in the stall (I don't know the exact size but it is an individual one, not the huge block) and my mare will take roughly a month or so to slowly lick her way through it. My hubbys gelding chews his in big mouthfuls and it is gone in about 48 hours. We don't give him it very ofen because that is a lot of salt/minerals in a short period. Can this hurt him? Should we not give him any in the future?