p90x how to start

how old do you have to be to start p90x?
hey guys, im 16 and a good 30 pounds overweight. i saw the infomercial for p90x and was impressed and i really wanna order it. Can someone of my age do the program? or is it safe?
A reviewer said that he/she would NOT recomment the p90x for anyone under the age of eighteen. This, however, is just one review. There is no age limit to use the p90x, as stated by the reviewer. So, feel free. You MUST have an adult to order it, remember.
Episode 2 P90x The Start