Not really honey, if you stick to the diet, you will get into Ketosis. I know KD posted somewhere about ketostix and that they only register surplus ketones that are got rid of through the urine and doesn't actually mean if you are not "in the pink" that you are not in ketosis. I rarely used to show pink, but obviously lost the weight. Its all up to you really x
Didn't use them once during my time on Exante - if you are 100% you are definitely in ketosis, and some can be lucky and stay in during the add a meal week too. Don't think I did but I got there in the end.