Genetics don't mean you will gain weight. They may mean you are predisposed to it, which in turn may mean you have to work a little harder to get it off and to keep it off. BUT lifestyle is the big factor in determining a persons weight.

If you want to make sure you loose weight in a healthy way which doesn't interfer with milk production, then join a program like Weight Watchers afterward (no earlier then 6 weeks after the birth).

I come from a family where I have 5 siblings - I am the only one who struggles with their weight, but genetically we are all predisposed to excess weight - they others all just live a healthier lifestyle then I do, and don't struggle with the emotional eating. I got fat because I let myself get fat. I may have had babies to help me make excuses, but being pg didn't make me eat a block of chocolate every night or continue it after the birth. I have also lost weight because I let myself loose weight. It isn't easy for me, but that is psychological, not physiological.

My DH is also one of six kids, they are all predisposed to carrying extra weight, they are ALL large, except for one of his brothers, and himself: they both work hard to maintain a healthy weight. The rest of them always have excuses, and one of them constantly mentions how it's all the fault of genetics. BULL. They eat crap, they do no exercise. Simple as that.

Weight gain and weight loss all comes down to a simple equation. Energy in vs energy out.