Diarrhea without dehydration, there is no need to worry. In case of dehydration, distinguish cases of marasmus from cases of kwashiorkor. 1. Marasmus: The main diagnosis is based on the patient's history rather than on his clinical examination (recent fluid loss, recent change). Normally, much less RéSoMal is required to adequately rehydrate a malnourished patient compared to a patient whose nutritional status is satisfactory (50 ml/kg of body weight represents 5% of their body weight). Rehydrate only until the weight deficit (measured or estimated) is corrected, then STOP! - Do not give any solute to “prevent any relapse” 2. Kwashiorkor: If a kwashiorkor has significant watery diarrhea and his general condition deteriorates clinically. Replace fluid loss based on 30 ml of RéSoMal per watery stool. This is not obligatory and the patient's clinical condition after taking RéSoMal must be reassessed again with caution. NB: Patients with persistent or chronic diarrhea (without acute aqueous fluid loss) do not need to be rehydrated. They have become accustomed to their altered state of hydration over weeks and should not be rehydrated for hours or days. The appropriate treatment for persistent diarrhea is nutritional47, it is most often due to nutrient deficiency and will be resolved with the administration of F75 and suppression of small intestinal bacterial overgrowth.