The authors argued: “We are not convinced that RUTF is ever a successful approach. The research studies on which this conclusion has been drawn were not optimally designed. Also, available studies on the use of RUTF have shown on average, a weight gain of between 3.5g/kg/day to 8 g/kg/day (3,4). The highest weight gain, reported only once with this product, was 15.6g/kg/day in a hospital setting”(5).
Read the full correspondence through this link