julieann
Your post lets me clarify my advice to Laura.  Christine has summed up the options.  IMO Jevity can only be tolerated with a feeding tube - it has only one flavor: "Yuck".  Jevity 1.5 has 355 calories per 8 oz. can.   My medical supply house delivers 8 cases plus 30 syringes each month per my prescription.  The can says it can be drunk, but I think you would have to be very drunk to be able to drink it.  

Laura
Since your husband already has a feeding tube, I pushed the Jevity 1.5.   However since he can still swallow, it is important that he keep doing so and Ensure Plus (I also could only stand the Vanilla ) or Carnation VHC are " better" than jevity to drink.  IMO, You caregivers have it so much harder than the patient.   I hope his weight stabilizes. 
Charm