At its core, the Dukan Diet is a low-carbohydrate and low-fat meal plan built around eating primarily lean protein, drinking water and taking a daily walk for about 20 minutes.

The Dukan Diet has four phases -

Phase 1: The Attack Phase.

During this first phase, participants will eat only lean protein from the allowable protein list the diet provides, along with 1.5 tablespoons of oat bran and a minimum of 6 cups of water per day.

👉Phase 2: The Cruise Phase.

Most of the weight loss will come during the second phase of the Dukan Diet, related to the implemented restrictions and guidelines. Transitioning into phase 2 means adding nonstarchy vegetables to the diet in unlimited amounts every other day.

👉Phase 3: Consolidation.

This phase is considered a maintenance phase to prevent regaining the lost weight and solidifying the new eating and exercise habits in the diet.

Participants start to add back previously restricted foods such as fruit, cheese, whole-grain products like bread and pasta, and celebration "treat" foods and meals in specific quantities.

This phase requires that you make one day a week a "pure protein day".

👉Phase 4: Stabilization-

During this final phase, a person will follow three rules—reserve one day a week for eating pure protein and following the "attack phase" guidelines, eat 3 tablespoons of oat bran per day and walk 20 minutes each day.

Sources- eatingwell.com