In-side Out Horse Care Proiotic 1kgin sideout can also be used in conjunction with in sandout, in force, in stride, in fusion msm & in fusion ha. in sideout may assist your horse by: Optimising digestion & utilisation of nutrients Supporting immune balance Supporting healthy condition Supporting horses under stress Supporting skin and coat health Supporting ulcer prevention & horses with ulcers Supports horses with digestive upsets & optimises manure quality May help reduce feed costs