Some Diets

 Some examples of popular weight loss diets are:

• The Mediterranean diet. This diet emphasizes eating fruits, vegetables, nuts, seeds, legumes, whole grains, fish, seafood, and olive oil. It also allows moderate amounts of poultry, eggs, cheese, and yogurt, and occasional amounts of red meat, sweets, and wine2
• The DASH diet. This diet aims to lower blood pressure and improve heart health by eating fruits, vegetables, whole grains, low-fat dairy, lean meats, fish, poultry, nuts, seeds, and legumes. It also limits sodium, sweets, sugary drinks, and red meats2
• The Mayo Clinic diet. This diet consists of two phases: the “Lose It” phase, which lasts two weeks and involves eating mostly fruits, vegetables, whole grains, lean proteins, and healthy fats, and the “Live It” phase, which is a long-term plan that focuses on portion control, healthy food choices, physical activity, and behavior change2
• The WW (Weight Watchers) diet. This diet assigns a point value to foods based on their calories, protein, sugar, and saturated fat content. The dieters have a daily and weekly budget of points that they can spend on any foods they choose, as long as they stay within their limit. The diet also offers online and in-person support, coaching, and tools to track food intake, weight, and activity2

You can find more information about these and other weight loss diets on the websites of the sources I used for this answer3