Current guidelines as per the Food Standards Agency is:
Alcohol
You should drink no more than 1 or 2 units of alcohol, once or twice a week.
A unit is half a pint of standard strength beer, lager or cider, or a pub measure of spirit. A glass of wine is about 2 units and alcopops are about 1.5 units.
Caffeine doesnt sound much better according to them either and I bet most people still drink/eat plenty of prducts containing it!! :
You should limit the amount of caffeine you have each day, but you don't need to cut it out completely. Caffeine occurs naturally in a range of foods, such as coffee, tea and chocolate, and it's also added to some soft drinks and 'energy' drinks.
It's important not to have more than 300mg a day. This is because high levels of caffeine can result in babies having a low birth weight, or even miscarriage.
Each of these contains roughly 300mg of caffeine:
3 mugs of instant coffee (100mg each)
4 cups of instant coffee (75mg each)
3 cups of brewed coffee (100mg each)
6 cups of tea (50mg each)
8 cans of cola (up to 40mg each)
4 cans of 'energy' drink (up to 80mg each)
8 (50g) bars of plain chocolate (up to 50mg each). Caffeine in milk chocolate is about half that of plain chocolate
I have stopped drinking alcohol since I found out I was pregnant but had had a few drinks when I was pregnant but before I realised!! I drink tea and occasionally eat chocolate too.