### The 3 Day Diet: Does It Work and Is It Sustainable? The 3 Day Diet promises quick weight loss, claiming you can lose up to 10 pounds in just three days. The diet consists of very low-calorie meals, with around 1,000 calories on the first day and similar amounts on the next two days. Meals are simple and include items like black coffee, grapefruit, toast with peanut butter, tuna, cottage cheese, hard-boiled eggs, and saltine crackers. While the diet is low-effort in terms of cooking and shopping, it lacks variety and can be quite boring. However, losing 10 pounds in 3 days is both unlikely and unhealthy. To lose just 1 pound of body fat, you need to reduce your daily calories by about 500 a day for a whole week. The Academy of Nutrition and Dietetics recommends a slow and steady weight loss of no more than 1/2 to 1 pound a week. Rapid weight loss often results in losing muscle and water, rather than fat, and can weaken your bones. Additionally, such restrictive diets are hard to maintain, and you're likely to regain the weight. The 3 Day Diet is not suitable for people with certain medical conditions like diabetes, hypertension, heart disease, and high cholesterol, as it is not low-fat, low-salt, or low-cholesterol. It also lacks balanced nutrition, including essential vitamins, minerals, and fiber. Physical activity, an important part of a healthy lifestyle, is not addressed in this diet. In summary, while the 3 Day Diet might lead to short-term weight loss, it is not a sustainable or healthy long-term solution. For lasting weight loss, a balanced diet and regular exercise are essential.