For what it's worth, I get stomach pain when I drink Ensure Plus (I've not yet tried the regular Ensure). I continued to drink Ensure for a while, as I thought that the stomach pain must have been a coincidence. After a while I realized that it happened too consistently to be a coincidence. I didn't get the pain every time I drank an Ensure, but it was common enough.
I very rarely gets pains of any kind, and have no food allergies or sensitivities that I'm aware of.View Thread