Do you have to follow a low fat diet in order to lose weight? The answer might surprise you as you discover the true value of those supposedly low fat foods. Some food items marked as "healthy" such as low fat yoghurts often have more energy than unsweetened full fat versions. This begs the question, is the low fat food market one of the drivers of the obesity epidemic? View the one hour lecture from UniSA's Gift of Knowledge 2009 lecture series.