If it's the balancer(in sacks) it can be fed on its own. It looks like mini pony nuts. If its the powder supplement (in the small plastic buckets) it is powder and needs a handful of something at least to mix with it.
Thanks for replies.
Am feeding my one just that on its own as doesn't need anything else imo (real good doer but want her to get vits) then someone said you had to feed along side another feed type otherwise doesn't work.I thought it would give her vits etc she needs and help her utilise what grass she is getting.????