| Summary: | Plain English Summary Patients hospitalised with anorexia nervosa require nutrition support as part of their treatment, whilst refeeding complications are prevented. Of particular concern, is the reintroduction of carbohydrate to malnourished patients, which has been proposed to cause a surge in insulin levels and disturbance in electrolytes, particularly a decrease in blood phosphate levels. This double-blinded randomised controlled trial measured the occurrence of low phosphate blood levels and other refeeding complications, in adolescent and young adult patients hospitalised with anorexia nervosa. These patients were provided either a lower carbohydrate/high fat feed (28% carbohydrate, 56% fat) or a standard enteral feed (54% carbohydrate, 29% fat). Fewer patients in the lower carbohydrate/high fat feed group (5/14) than standard feed group (9/10) developed a low phosphate level. There was no significant difference in weight gain, number of days to reach medical stability, occurrence of hypoglycaemia, or hospital length of stay.
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