What different slimming clubs do and offer varies from club to club, but generally, they offer support with weekly group meetings, and online forums. They typically follow a particular food plan and have a membership or attendance fee. Usually, group leaders are previous members who have personal experience of using the plan to lose weight. Some clubs offer exercise programmes.
Who can join also varies from club to club, but usually you have to be over 16 with a weight of 2.3kg (5lb) more than your minimum height to weight ratio, using a BMI calculator.