SMA's Advanced Gold System is a range of scientifically developed formulas to help meet the nutritional needs of babies & young children. every single product has a tailored nutrient profile for each stage of growth & development. SMA's First Infant Milk. SMA's best alternative to breast milk, from birth onwards when baby is not breastfed. Breastfeeding provides the best start for your baby but if you decide not to, or to combination feed, choose SMA First Infant Milk, nutrionally complete with Omega 3 & 6 LCPs.