Hey! Welcome to the group. I would advise not to stick to the 1200 calories, at least not beyond the kick start week (if you're doing that). From what I've seen, many/most of the people here seem to agree. It just isn't sustainable for most people. Try to work out your TDEE (there are numerous threads on MFP about that) and eating at a 10-20% deficit below that.

http://www.freedieting.com/tools/calorie_calculator.htm
This calculator is a good starting point to work out how many calories might suit you for fat loss. It served me well in the first month of the program when I was still looking to lose body fat, but now I'm moving back to my maintenance calorie goal and focusing on toning / building more lean mass.

Good luck! Stick with JMBR and a healthy diet, and I'm sure you will see great results like many of the people here!

I'm new too and just started JMBR on Monday. I am doing the Kickstart to try to get motivated to stick with it! I dont think I will stick to the meal plan after this week, just make better choices and continue the workouts. I love the workouts so far...Just when I am getting real sweaty, its over! Would love to check in for support on this journey!