My husband is near the end of treatment for squamous cell ca un known primary. He will have had 39 IMRT and 3 rounds of cisplatin. He has a gtube but using it makes him sick so he is drinking shakes. We found Suplimed substi-meal online. It was developed by a md and patient and yeilds 600 cal per 8oz. We mix with a can of prosure and some fruit for over 1000cal. Hope this helps it is $32 for 16 servings and can be ordered on-line.