After I got diagnosed I cut out beer totally ( about 8 months), when I got my BG under control I though as it's Xmas I'll have a beer or 3 . I found it quite difficult at first as I decided only real ale would pass my lips, not John smiths and other such rubbish. I now have a couple of pints once a week and have not suffered any ill effects. I must admit to getting completly " bladdered " ( maybe 5 or 6 pints) on 2 occassions, My Birthday and when I met up with some ex work colleque. Didn't really effect my BG up maybe < 0.5 only problem was in my inebriated state I went for a donner kebab with the lads !!
I think a pint or 2 does you good it reduces the stress of being diabetic.