Iron is an essential micronutrient for piglets, which if supplemented at weaning improves the growth performance (Kamphues et al, 1992). The effects on non-haem iron uptake involve the reduction of ferric iron to ferrous iron in the acidic environment of the stomach and the subsequent formation of a stable soluble chelate, which stays in solution in the alkaline environment of the small intestine where it is absorbed. In this way the presence of ascorbic acid in the diet can influence iron uptake by enhancing dietary iron availability or preventing the binding of iron-to-iron antagonists such as polyphenolics and phytate. In addition, ascorbic acid may also increase the utilisation of haem iron by a mechanism which involves its incorporation into ferritin, possibly through facilitating the iron-stimulated translation of ferritin mRNA and preventing lysosomal ferritin degradation. (Szent-Gyorgyi, 1992). The aim of this study was to investigate the effect of supplementing piglets with a stable form of Vitamin C on growth performance after weaning.