Mindset is 100% of the success.
Mindset controls:
exercise when you don't want to
shopping at the grocery store
passing on going to the fast food joints
day-to-day awareness to past mistakes
day-to-day awareness to future goals
saying no to yourself and beating down temptation/overindulgence
allows you to develop your new day-to-day lifestyle through memorization until it becomes habit
you can pick
atkins, xenical,
lipo, med
diet and on and on and on but if you don't have the mindset to succeed with it/at it and develop a long lasting plan mentally, nothing else in the above-mentioned list will amount to a hill of beans.