SUMMARY SUPPLEMENTARY FEED FOR ORAL ADMINISTRATION FOR REDUCING PIGLET NEONATAL MORTALITY AND THE PROCESS FOR OBTAINING IT comprising fatty acids and plant and animal oils of between 45% and 65%, iron glycinate of between 5% and 15% for a concentration of Fe of between 10 and 30 mg/ml, stabilising and thickening agents of between 5% and 8%, liposoluble vitamins of between 1 % and 3% and plant lecithins of between 2% and 5%. It also contains preservatives, colorants and aqueous excipient and probiotic and phytobiotic agents. The process comprises obtaining a stabilised solution of iron glycinate in a suitable reactor, mixing the oils, vitamins, lecithins and the other components used in the preparation of the iron glycinate solution with stirring at around 35 °C, homogenising the mixture and adding the solution of iron glycinate with stirring until obtaining a homogeneous product with a viscosity of between 800 and 1,400 cps.