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.

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

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  • Susan on August 14, 2014

    I am trying to figure out the dairy…I have read all I can find…but it says no more than 1 kg….is that statig less than 2 pounds? Thanks.

    • Amber on August 17, 2014

      Hi Susan

      1 kg equals 2.2pounds. When working out 1 ml equals 1 g. so a litre of milk would use all your daily allowance.

      Kind regards

      Amber:)

  • Georgina on August 14, 2014

    Hi Amber,
    Can you on occasion change the rhythm? For example this weekend I am going to two dinner parties. Can I eat PP days Thursday and Friday, then PV days Saturday Sunday then return Monday to alternating between PP and PV daily?
    Thanks, Georgina

    • Amber on August 14, 2014

      Hi Georgina

      Yes you can move your PP and PV days around.

      Best wishes

      Amber:)

  • MAVIS on June 26, 2014

    hello amber,
    i have lost wait, but my belly size is still the same what can i do

    • Amber on June 26, 2014

      Hi Mavis

      Keep going, the weight will shift form your problem area but it might be the last area.

      Best wishes

      Amber:)

  • Doug on June 23, 2014

    I like the idea of having my PV days be consistently the same each week. Does Dukan have a problem with a 4PP/3PV set up? WED/FRI/SUN would be my 3 PV days.

    • Amber on June 24, 2014

      Hi Doug

      I personally think a 7 day rhythm is easier to follow as our lives usually follow this pattern. It is a little slower as you will get slightly fewer PP days.

      Best wishes

      Amber:)

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