The UK Advertising Standards Authority (ASA) has upheld complaints dating from 1997 about the claims made for the "energy" drink Red Bull, the BBC reports. The makers of the drink will in future have to seek prior approval from the Committee of Advertising Practice (CAP) for advertisements of the product. Although Red Bull produced more than 20 studies to substantiate its claims the ASA said the company could not provide satisfactory evidence to back up its claims for the period when the complaints were made. Red Bull UK managing director Harry Drnec said: "Although Red Bull do not agree with this decision, we are pleased that the situation is finally concluded and that the ASA have now acknowledged the existence of the recent research studies, which could not be taken into consideration in the investigation process. "
