Compared to carb molecules- fab molecules produce 4 times more energy than carbohydrates/ glucose! So in theory after ketosis kicks in you will have more energy to perform exercise- however if you do not exercise at all at the mo- i wouldn't go to doing aerobics classes with/ without lipotrim!
Start off small, walking on tread mill, small amount of weights...then increase it each time.
Of course exercising will help you loose more weight as you are burning more fat
but like prev posts listen too your body
also if you are losing large amounts of fat- exercise will help MASSIVELY with toning and help firm up flabby skin left behind
especially in the breasts- but if your not used to exercise, get a programme made by the gym team, they will make you a free programme!- or should!