Herbal Vitamins for a healthy living?

it has been a long time since i have excercised or even used a treadmill for that case and now my next worry is  that i will end up looking like a couch potatoi am very figure concious and when everything is spinning out of my control it is making me want to take control over it,and  since i have very less time to tone down before my sisters engagement,and i  also dont want to be using antibiotics to slim down .will herbal vitamins help me in cutting away my wieght in a safe and healthy manner? will these herbal vitamins ensure that my body ends up looking beautiful,sexy and not remind me of the present?what are the different kinds of herbal vitamins?