ABBOTT ENSURE PLUS LIQUID (VANILLA FLAVOR) 250ML TINABBOTT ENSURE PLUS LIQUID (VANILLA FLAVOR) 250ML TIN is a fiber free, nutritionally complete liquid tube feed that has a kcal mL value of 1. 5. It provides low residue and more protein (63g per 1000 mL) at a greater energy cost. In order to assist patients achieve and maintaining a healthy weight, this specifically developed diet is high in protein and low in calories, supporting lean body mass.