Feed roughly 2 mugs a day and no they don't send horses loopy! In fact the stuff I read up on them, they were supposed to act as a calmer as much as everything else as they are high in magnesium which is the main ingredient of a lot of calmers
Anyone know if the stripey ones are as beneficial? We ordered black oil sunflower seeds but feed store got in the stripey ones - horses seem to like them and after a couple of months - it may be coincidence - farrier commented that Marco's feet were looking better.