"I don't believe in fad diets"

Jenny Craig is revealing her viewpoint that fad diets are not effective or sustainable. She believes that a healthy lifestyle needs to be based on a balanced diet plan and regular workout. She is likely referring to diets that guarantee fast weight-loss with little effort, such as fad diet or severe calorie restriction. These diet plans are often not nutritionally well balanced and can cause illness. Jenny Craig is promoting for a more sustainable method to weight-loss and health, one that is based on a well balanced diet plan and routine exercise. She believes that this approach is the best method to achieve long-term health and wellness.