nutrient enemata

Rectal feeding can be carried out with nutrient solutions as the colon can absorb 1-2 litres of solution per day; maximum daily amount of glucose that can be given is 75 g (equivalent to 300 kcal, 1260 kJ), and 1 g of nitrogen, in the form of hydrolysed protein (equivalent to 6 g of protein). See also enteral nutrition; parenteral nutrition.