If your goal is to maintain a healthy weight in the long term while eating nutritious foods, consider adopting one of these science-backed diets. Each plan has been evaluated by a team of leading medical and nutrition experts specializing in diabetes, heart health, and weight loss. Our experts assessed the nutritional balance, health risks, benefits, long-term viability, and scientific backing of each diet. They also analyzed the strengths and weaknesses of the diets and determined which goals they are most effective in achieving. This process has led to our