I'm new to JUDDD and I've been doing this for 2 weeks now. I had 4/5 stones to lose when I started. I use CD on my down days and eat normally/healthily on my up days. I lost 10lbs in my first week and weighed in this morning and have lost another 3lbs. When I did CD 18 months ago, I lost 11lbs in 8 weeks, my body just couldn't cope and went into starvation mode and I was quite poorly too.
I am finding JUDDD easy, I do think having the CD for the down days has helped me alot. I don't have to think about what to eat and I know my body is also getting everything it needs. My old CDC was very supportive when I rang her and asked if she would consider letting me try doing it this way. I am so pleased with how it's going.