I used 2 take diet pills, like hydroxicut and metalbolife. they made my heart race and its kind of hard 4 me 2 do strenuous exercise. dont do it. i saw a talk show recently where people had strokes and have died. dont do it. u r much better doing it urself. besides, when i did take them, my mom told me, "what, DO U PLAN ON TAKING THIS 4 THE REST OF UR LIFE?"