I liked the ProtiDiet liquid Beverage Concentrates. They gave them to me in the hospital and I used them a lot in the first few weeks. Initially, I ate them over crushed ice with a spoon. Later I was able to dilute them. Now, I add them to my Water bottle on occasion.
I also like some of the Syntrax Nectars. Fuzzy Navel is my favorite.
Some people like Isopure. I tried it but it wasn't my favorite.
Keep in mind that you can continue to use clear supplements once you advance to later stages.
I recommend trying some samples before you buy a lot. I got a sampler pack from Syntrax of their different flavors which was helpful.
My surgeon's office sold the ProtiDiet concentrates and I also order them online.
You can also check a store like GNC or The Vitamin Shoppe.
I am not nearly as ancient as you (I am a mere 51), but I have had a great experience. I was sleeved April 20, 2015 and started with a super high BMI. I couldn't be happier with my progress so far.
