okay, i want to start taking somthing that will help maintain my weight. I am/was a swimmer but now that i've grauduated from high school and swimming is over, i fear that i'll start to gain weight if i'm not in the pool constetnly, cuz i'm not planing on swimming a whole lot. So is there anything out there that i can take or do that wont take up a lot of time and still be able to maintain my shape?