Hi Jess, I had the same concerns when going on Atkins. My hubby eats low carb, high fat meals with me but still has his cereal and bread etc. For the first month we really watched his weight and incredibly he lost 10 pounds! He is no longer losing anything (he has no fat left to lose), but he's still not gaining. I think the cut down on sweets (I don't bake anymore except for low carb goodies) and the really low carb dinners are whats done it for him but I don't know. He also eats more veggies then before because that's what I eat. The only real problem I have with living with someone not on this wol is that they eat all my good food because everything on this diet is so delicious! Now I just buy enough for both of us so I'm not left with nothing to eat. (G) Hope it works out as well for you!