Hi, Pete. My husband [same age as you] used 2Cal HN in his peg tube. If memory serves me right, it had 450 + calories per can, which cut down on the number of cans per day. It is by perscription only and is not cheap. However, it is what our Doc specified for him. Our 19 mo. old grandaughter runs around the house with John's mask in front of her face,saying "BOO". Wishing you much luck in getting through this. Amy