Atkins stated that not everyone enters Ketosis. As long as you are feeling healthier, and if the scale or tape measure goes down, don't worry about the strips. They can also be effected by what foods you have eaten and if you are dehydrated. Alcohol can also give you a dark pink, but that doesn't mean fat is coming off.

I use them as a reassurance thing in the mornings. I don't have the dragon breath or other side effects so I don't know if I am truely in ketosis, but I do know I am losing inches and that's what is important to me.