Amy's correct, the junk in my case came in cans from WalMart and was some kind of store brand; Safeway has a similar product in plastic bottles (slightly more expensive, but easier to seal and discard) and then there are the brand names like Boost and Ensure -- Essentially the same stuf and can be found in calories as high as 350 per container (the more calories, the fewer containers of junk that needs to go down the tube!.

My dietician informed me that three containers have enough vitamins, etc., to satisfy normal adult requirements for the day. To maintain my weight (172-4 lbs) I was consuming seven containers, or 2,450 calories per day.