I've gone through a few cases of the premade drinks. My first bottle or two did the same to me but never since. Pretty sure it was the high amount of fat (~50%

I've gone through a few cases of the premade drinks. My first bottle or two did the same to me but never since. Pretty sure it was the high amount of fat (~50% of calories) coupled with an empty stomach. I keep them at my desk and in my car for occasional usage.