20 million units of alcohol are consumed weekly by 11 to 17 year olds in the UK. Starting to drink at a young age is associated with higher risks of alcohol dependence and other harms as an adult. An alcohol-free childhood is the healthiest option, but parental guidance can help reduce risks if 15 to 17 year olds do drink. Frequent or binge drinking should be avoided, and daily drinking limits for adults should not be exceeded. Parents have significant influence over children's drinking, so they require advice on appropriate monitoring and rule-setting regarding alcohol use. Support services are also needed for young people and parents dealing with alcohol-related problems.