“…as a single probiotic [ 13 , 16 , 27 , 28 , 30 , 31 , 33 - 35 ] or multiple probiotics [ 12 , 29 , 32 ]; alone [ 12 , 13 , 27 , 28 , 32 - 35 ] or in combination with other products such as prebiotics [ 16 , 31 ] and long chain polyunsaturated fatty acids (LC-PUFA) [ 30 ] or both prebiotics and LC-PUFA [ 29 ]. Ten of the studies [ 16 , 27 - 35 ] compared a probiotic enriched formula/food/milk in the intervention group with a control group who had the same products but no probiotic added to it. One study compared probiotic food with no intervention (i.e.…”