Complex sentence: Critics argue (given Africa's limited production capabilities) that Nutriset's response is unlikely to significantly improve the problem of "only 3 percent of the estimated 20 million children suffering from severe acute malnutrition each year" receive RUTF treatment.
Split into simpler sentences: Critics argue (given Africa's limited production capabilities) that Nutriset's response is unlikely to significantly improve the problem. Currently, "only 3 percent of the estimated 20 million children suffering from severe acute malnutrition each year" receive RUTF treatment.