The Dukan Diet, developed by French physician Dr. Pierre Dukan, is a weight loss program that has gained international acclaim due to its potential for rapid weight loss. The diet consists of four phases – Attack, Cruise, Consolidation, and Stabilization, each of which serves a unique purpose in the weight loss journey.

The first and perhaps the most intensive of these phases is the Attack Phase. This article provides a detailed analysis of the Attack Phase on the Dukan Diet, including its purpose, duration, allowed foods, potential benefits, and drawbacks.

What is the Attack Phase?

The Attack Phase is the first and most stringent stage of the Dukan Diet. It’s designed to kickstart the weight loss process by putting your body into a state of ketosis, where it burns fat for energy instead of carbohydrates. This phase is characterized by a high intake of proteins, which not only helps maintain muscle mass but also stimulates metabolism and satiety, reducing the overall calorie intake.

Duration of the Attack Phase

The length of the Attack Phase varies depending on the individual’s weight loss goals. For those looking to lose less than 10 pounds, the Attack Phase usually lasts 1-2 days. For individuals aiming to lose between 15 and 30 pounds, a 3-5 day period is recommended. If the weight loss goal exceeds 40 pounds, the phase may extend up to 7 days. However, it’s crucial to note that extending this phase beyond the recommended period can lead to nutritional deficiencies and should be undertaken only under medical supervision.

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Food Permitted in the Attack Phase

The Attack Phase strictly emphasizes protein consumption. Dieters are allowed to choose from 68 protein-rich foods, including the following:

  • Lean Meats: This includes veal, beef, and rabbit. It’s recommended to remove any visible fat before cooking.
  • Poultry: Chicken, turkey, and other low-fat birds are permitted, excluding fatty fowl like duck and goose. All poultry should be consumed without the skin.
  • Fish: Virtually all fish, including cod, salmon, trout, and haddock, are allowed. Shellfish like shrimp and mussels are also permitted.
  • Eggs: Both egg whites and yolks can be consumed. However, those with high cholesterol should limit their yolk consumption.
  • Non-Fat Dairy: This includes non-fat milk, yogurt, cottage cheese, and other non-fat dairy products.
  • Vegetable Proteins: Tofu and tempeh are excellent protein sources for vegetarians and vegans.

In addition to these proteins, 1.5 tablespoons of oat bran per day is recommended to aid digestion. It’s also crucial to stay well-hydrated, with at least 1.5 liters of water consumed daily.

Potential Benefits of the Attack Phase

The Attack Phase is popular for its potential for rapid weight loss, which can be a significant motivational boost for many individuals starting their weight loss journey. Furthermore, the high protein content can help preserve muscle mass and promote satiety, reducing the overall caloric intake.

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Potential Drawbacks of the Attack Phase

Despite its benefits, the Attack Phase also has some potential drawbacks. The strict focus on protein can lead to a lack of essential nutrients obtained from fruits, vegetables, and whole grains. This can sometimes result in side effects such as bad breath, constipation, dry mouth, and fatigue. In addition, those with kidney problems should be cautious as high protein diets can put extra strain on the kidneys.


The Attack Phase of the Dukan Diet offers a quick start to weight loss, driven by a high-protein, low-carb, and low-fat diet. However, given the restrictive nature of this phase, it is crucial to adhere to the recommended duration and guidelines to ensure overall health is maintained. Individuals should also consider their personal health circumstances and ideally consult with a healthcare provider before embarking on the diet to ensure it’s a suitable approach for their health and weight loss goals. It’s important to remember that while diets like these can offer quick results, long-term weight management relies on balanced eating habits and regular physical activity.