SMA Breast Milk Fortifier (70x1g). A nutritional supplement to be added to expressed breast milk, for feeding preterm low birthweight infants (LBW). This product must be used under medical supervision.. The only breast milk fortifier to contain iron.. 100% whey protein, partially hydrolysed for improved tolerability and adds 1.44 g protein per 100 ml expressed breast milk.. Contains DHA to help support normal visual and brain development and contains MCTs, an easily absorbed fat and readily available energy source.