Fad diets such as a meat and fruit diet are meant to encourage short-term weight according to the National Institutes of Health, is to follow a low-calorie diet that The amount of weight you can lose by eating just meat and fruit is dependent. Losing weight requires you to eat fewer calories than you burn. Choosing healthy foods and moderate portions keeps your calorie intake in check. Chicken, fruits. A diet high in proteins and fruits can help you lose weight fast. Eat lean protein and fruit or fruit juice at breakfast to support a lean lifestyle, says Eric Have six meals and snacks a day that contain lean proteins, fresh fruits and vegetables. Do not forget to take in some healthy fats, which also promote fat-burning.