Intervention 1 Intervention 2 Control group
Presurgery examination Dietary screening and guidance 14 days before Dietary screening and guidance 14 days before Dietary guidance 1 day before
Day before surgery Night meal (200 calories).
125 ml protein drink 		Night meal (200 calories).
125 ml protein drink 		Fast 6 hours before surgery
2 hours before surgery 400 ml of maltodextrin 400 ml of maltodextrin 2 glasses of watery liquids
After surgery
(first 24 hours during hospitalization) 		1200 ml of tube feeding.
Cold liquid diet 		5 x 125 ml protein drinks.
Cold liquid diet 		Cold liquid diet
Day 1
(after discharge) 		1 protein drink (125 ml).
Soft diet 		1 protein drink (125 ml).
Soft diet 		Soft diet
Day 2 to 10 3 x 125 ml protein drinks.
Soft diet 		3 x 125 ml protein drinks.
Soft diet 		Soft diet
Day 11 to week 8 Soft diet Soft diet Soft diet