My friend is 12weeks nearly 13 weeks pregnant, I went to her house to drop some baby stuff to her, and when I walked in she's was drinking Red bull, I said you shouldn't be drinking that is said is on the tin but she's turn around and said her doctor said she's can have one a day but for the rest of the day to drink water and that to be her only caffeine intake for the day. If it was okay they wouldn't put warning label on it right! Does anyone one know how harmful is to her baby and what it does so I can let her know. So stop this