<prompt> The best indicator of acute malnutrition isWeight for heightWeight for ageHeight for ageBMI 2SD  <response>: Severe acute malnutrition is defined by a very low weight for height below-3z scores of the median WHO growth standards, by visible severe wasting, or by the presence of nutritional edema.Refer: Nelsons Textbook of Pediatrics, SAE, 1st edition, pg no. 301 