A ready-to-consume liquid nutritional composition which is particularly suitable for use by morbidly obese patients pre- and post-bariatric surgery. The composition comprises an energy content between 80-160 kcal/100 ml, a protein content between 40-80 En %, a digestible carbohydrate content between 0-30 En %, a fat content between 5-40 En %, a soluble dietary fiber content between 1.5-8 g/100 kcal, and micronutrients. The micronutrients comprise calcium in an amount between 150-1000 mg/100 kcal, phosphorus in an amount between 100-1000 mg/100 kcal, with a Ca:P ratio of at least 1.0, iron in an amount between 4-50 mg/100 kcal, vitamin D in an amount between 2-400 mcg/100 kcal and vitamin B12 in an amount between 0.5-300 mcg/100 kcal.