Calorie cycling involves eating low calories for a few days and then spiking to your maintenance level. This works because you get the benefit of creating a calorie deficit without the negative effect of slowing down your metabolism. The body is very efficient so if it sees that instead of giving it the 1800 calories you used to give it, you're only giving it 1200, it will decrease its needs to only be 1200 so you're not starving. With calorie cycling you would do something like drop to 1200 for 3 days and on the 4th day spike up to 1800. That way your body says, 'hey...I'm not starving...must have just been a bad few days' and continues to drop the weight that you're trying to lose.
The best way to figure out calorie cycling is to go to www.freedieting.com and check out the calorie calculator. Click on the zig-zag method and it gives you a basic calorie cycling calculation. I tend to spike on days when I do extra cardio and do low days on my off days from working out.
You can also cycle your carbs if you're carb sensitive. Dropping low for 3 days and then spiking the 4th before dropping back down again.
Calorie cycling has helped me break through plateaus again and again. Let me know if you have any other questions!
"Nothing tastes as good as Sexy feels." ~ Me
Co-leader: Burn the Fat - Feed the Muscle