Nestlé Oral Impact Tropical is a specialist feed for the pre-operative preparation of elective surgery patients such as major surgery for head & neck cancer & GI malignancy. Oral IMPACT is a powdered sip feed that provides 1.0 kcal/ml when reconstituted with water (74g powder plus 250ml water) & is enriched with omega-3 fatty acids, arginine, nucleotides & soluble fibre.