I am scheduled for my sleeve May 21 so I'm using this time (while I'm impatiently waiting) to research Protein drinks. I read a disturbing article from Consumer Reports about Protein Drinks that were high in metal content such as arsenic, cadmium, lead & mercury. The article was from July 2010 so perhaps these issues have been addressed by the manufacture but meanwhile how do we know? I guess I will avoid some of the higher ones, which were ones I had tried and liked. Unfortunately they only tested 10 different companies (with multiple varieties from some companies).
I think there needs to be some organizational support here. Perhaps some of the non-profits such as ASMBS American Society of Metabolic & Bariatric Surgery or whatever else is out there, should offer some type of "Seal of Approval" or something so that we can have a standard. While the average person may only consume 1 of these a day, the 3 a day that Consumer Reports used in their testing, would not be uncommon for this community.
http://www.consumerreports.org/cro/magazine-archive/2010/july/food/protein-drinks/whats-in-your-protein-drink/index.htm