Naf vitaferrin supplement the naf vitaferrin supplement has been developed to help optimise a horses performance levels iron rich and fortified with vitamins and minerals that help to maximise training and performance while the added yucca and echinacea also help support a health immune system vitamin supplement optimises a horses performance 1l composition maize starch pre gelatinised sodium acetate potassium chloride 6600mgl magnesium chloride 2800 mgl dextrin