I'm pretty sure it's all in the question. Let's assume I'm talking about the standard kind of beer, you know, the kind I can buy in a pub (as you can tell, I don't know much about beer).
closed as off topic by Moses, Dave Liepmann, user3085, michael, VPeric Apr 26 '12 at 8:52
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The Paleo framework starts from the perspective that most people will find that grains, legumes, dairy, being anti-social, getting no sunlight or exercise, and eating too many carbs for their exercise level will be problematic, for genetic and epigenetic reasons.
That being said, here's the Paleo test at its most bare:
Does it cause you gastrointestinal distress? Are you sure?
That's really it.
Try abstaining from grains (like beer), legumes and dairy for thirty days. Then re-introduce these items one by one, and gauge your response. People are different. Some people can handle these items better than others.