Women trying to lose weight after the age of 60 should follow a diet that emphasizes plenty of protein, according to WebMD. A healthy diet includes whole foods, such as vegetables, fruits, beans, whole grains and low-fat dairy products, and limits sugar and saturated fat.
Women should strive for at least 1 gram of protein per kilogram of body weight, states WebMD. Protein helps maintain muscle mass, which decreases as people age. It also helps satiety, as does drinking plenty of water and staying hydrated. Healthy sources of protein include salmon, lean meat, poultry, whole eggs and whey protein powder. Additionally, women need fewer calories as they age and should offset a slower metabolism by eating more frequently throughout the day.