An oral rehydration composition comprising a composition to be made up in water at point of use as an oral rehydration formulation, which composition comprises glutamine which is effective to enhance nutritional uptake, and an appropriate mixture of a metabolizable energy source, electrolytes, bicarbonate precursors, and alkali metals, especially sodium, the concentration of sodium being about 120 millimoles per litre (mmol/l) of final formulation.
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