Hi! I'm beginning P90X today for the second time. My hubby and I did 90 days together in 2010. We both built up our strength and endurance, but did not lose much weight. We did not follow the nutrition plan. When we finished we stuck the dvds in a cabinet and forgot about them. I pulled them out today and this time I will be doing it alone. I plan to eat clean and hope to lose 50 pounds ultimately. Nutrition will play a bigger part this time around.