The best diets for weight loss

Whether you're dieting or not, our list of the best weight-loss diets for 2019 focuses on improving your heart health, raising your mood, or gently guiding you through a dramatic physical transformation. The Mediterranean Diet, for example, has risen from obscurity to become nutritionists' current crown jewel for what defines a healthy and balanced diet. "It's wonderful because it focuses on changing your complete lifestyle rather than just a diet," Fischer says, comparing it to the other standouts on this list.