question?

[jonny]

if i was to change my diet from low carb to another (eg low fat) would i gain any weight?

[Moochiecat]

Maybe...maybe not.
You might want to ask this question in the low carb board as well
http://www.lowcarbbulletinboard.com/diet/index.php
because you might get a response from someone who has done that.

[Kent]

You most likely will as the body retains water as it refills its glycogen stores in your muscles, but it really depends on what phase of low carb you are doing. What are your specifics?