At the end line , median ( IQR ) nutrient densities were significantly higher in the CFR group than in the non-CFR group for iron [ i.e. , 0.6 mg/100 kcal ( 0.4-0 .8 mg/100 kcal ) compared with 0.5 mg/100 kcal ( 0.4-0 .7 mg/100 kcal ) ] and niacin [ i.e. , 0.8 mg/100 kcal ( 0.5-1 .0 mg/100 kcal ) compared with 0.6 mg/100 kcal ( 0.4-0 .8 mg/100 kcal ) ] .