Her er hvad Dukan skriver:<br />
We don’t recommend protein powder as a part of the Dukan Diet. It's not that it is dangerous or of poor quality, it’s that protein powder does not constitute real food. People are not meant to get their nutrients from powder. If you use protein powder as a weight loss aid, you will eventually tire of it and go back to eating real foods, at which point your weight will rebound. In addition, protein powders are made up of highly concentrated proteins which can throw off your body’s natural balance. There is no reason to fill up on man-made powders rather than eating a good filet of fish, some grilled meat, cottage cheese or yogurt. Protein powder is not any cheaper than protein rich foods so even from a financial stand point; buying powders doesn’t make any sense. The same applies to the protein drinks.<br />
<br />
Så du må godt, men det frarådes.