The Cruise Phase of the Dukan Diet Explained

The Cruise Phase is the second of the four stages of the Dukan Diet. It is also the second of the two weight loss stages. The Cruise Phase is the part of the Dukan diet where followers lose the remaining pounds needed to bring them to their target weight.

How long you will need to stay on this phase of the diet does of course depend upon just how much weight you have to lose. As a rough gauge you will lose about a pound for every three days spent cruising.

In this part of the diet you alternate a pure protein (PP) day as in the Attack phase with a protein and vegetable (PV) day. The high protein foods which can be eaten on PP days remain as in the Attack Phase and there are 28 permitted vegetables that can be added on PV days.

Whilst cruising you should usually follow a rhythm or pattern, this is the way in which you alternate the PP and PV days. When the diet was first published the recommended rhythm was 5 PV days followed by 5 PP days however many found this regime difficult to fit into their routines. The current recommended rhythm is 1 day PV followed by 1 day PP.

The 1 day PV/ 1 day PP rhythm does have some definite advantages. It allows you more variety and needs less willpower. 5 days of PP in one stretch is not an easy feat to repeat time and again. It also adds the additional fiber from the vegetables in a more evenly distributed way.

You could of course devise your own rhythm and say have PP only days on Mondays, Wednesdays and Fridays with PV days for the rest of the week. The PP days can equal but should never exceed the PV days and there should not be more than 5 consecutive PP days. If you adopt a personalised rhythm you may not lose weight so quickly but you may find it easier to maintain.

In this phase of the Diet you increase the daily amount of oat bran consumed to 2 tablespoons a day and up the amount of daily exercise to 30 minutes.

257 Responses to “The Cruise Phase of the Dukan Diet Explained”

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  • Nour on April 22, 2014

    Hi Amber,

    During the cruise phase, I will continuously alternating between PP & PV without taking a break – i.e. 5 days PP ,5 days PV then another 5 days PP ,….. etc- till the end of this phase without taking a single day off, right?

    • Amber on April 22, 2014

      Hi Nour

      That is right. This is why many people find the 1PV/1PP rhythm easier to follow.

      Best wishes


  • Deepak Nagpal on April 20, 2014

    I’ve reached my goal weight by just doing the attack phase, can I skip the cruise phase and go onto consolidation?

    • Amber on April 21, 2014

      Hi Deepak

      Yes you can.

      Best wishes


  • Ryan on April 14, 2014

    Hi Amber,

    My girlfriend and I both just ended the Attack phase and I lost 8lbs during the phase… On the first couple days of the cruise phase so far though we each gained a pound back… Is this normal with the reintroduction of veggies every other day back into our diet?


    • Amber on April 14, 2014

      Hi Ryan

      Some water gain on adding vegetables is fairly common especially if you’ve had a good loss in the Attack Phase. You can help combat this by ensuring that protein forms about 2/3 of your daily intake on PV days.

      Kind regards


  • Kate on April 6, 2014

    Hi Amber. I’m on my last day of the Attack Phase (6 days as recommended on the Dukan Diet website, when I went to find my True Weight). I am planning on doing the 5/5 plan of the Cruise Phase starting tomorrow. My question is, how do I start the cruise phase? Do I start with 5 days of PP (basically continuing the Attack Phase) and then do 5 days of PV? Or do I start the Cruise Phase with 5 days PV, and then 5 days of PP, and so on? Thanks in advance for your reply. Kate

    • Amber on April 6, 2014

      Hi Kate

      You start the Cruise phase with the Pv day or days as in your case you’ve chosen to use the 5PV/5PP rhythm.

      Best wishes


  • Sarah on March 27, 2014

    Hi amber

    I have a few questions.
    One being that I came of attack phase loosing 3kg then I put on again first week of cruise phase….?.

    Am doing 2days of pp and 22 pv

    What u advise

    Also we are allowed sirloin steak right?

    • Amber on March 27, 2014

      Hi Sarah

      It is very unusual to put 3 kg back on in a week and this rate of increase would make water retention the most likely explanation with a little bit a constipation perhaps as well. Do you feel bloated or constipated? Yes sirloin steak is OK to eat with all visible fat removed.

      Best wishes


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