Ensure Plus Advance Ensure Plus Advance ready-to-drink, oral nutritional supplement formulated specifically for people over 65 years who have, or are at risk of, malnutrition. Each bottle contains 330kcal (1.5kcal/ml), 20g of protein & calcium & vitamin D. Best served chilled, Ensure Plus Advance is available in 3 delicious flavours: banana, chocolate & vanilla. Simply choose from the drop down above. Ensure Plus Advance is gluten free & is suitable for vegetarians & those following a Kosher diet. The banana & chocolate flavours are suitable for Halal diets, but the vanilla flavour is not.