I've gained 4.2kg since surgery. I'm exercising regularly and eatting a balanced diet, walking 5kms (at a fast pace) atleast twice a week the other days I do around 2kms. Have not lost a single gram :o This made me wonder how much my implants actually weigh? I have 390cc EHP round silicone implants (they are textured nagor implants not that I think that would make any difference lol) Thank you for your help :)