Osmolite 1.5 liquid nutrition ready to use. 8 oz carton, 355 calories per carton. 24 cartons/case. OSMOLITE 1.5 CAL is a source of Complete, Balanced Nutrition and a low-residue formula for tube-fed patients with increased calorie and protein needs, or for those with limited volume tolerance. For sole-source nutrition via a feeding tube. Use under medical supervision.