Are fad diets bad? | A fad diet is an eating plan that becomes popular quickly. Fad diets often promise dramatic, unrealistic weight loss results. Many are designed to take advantage of people’s willingness to “try anything” to lose weight, look & feel better & reduce their risk for weight-related health problems, such as diabetes & heart disease. Are all fad diets unhealthy? Do they meet the nutritional recommendations? CLICK PIN & READ ON.