Ahh yes, the wonderful hormone changes that come with menopause, Mother nature hands you 10 lbs just cause she's a generous soul. Your metabolism slows down and foods that you used to eat, well, now they seem to affect you in a whole different way. I had to cut out all grains, yes even the ones considered healthy. Now i may have a slice of Kamut bread maybe once in a while but definitely not daily.
I have cut out all refined sugars and whites and only eat complex carbs and watch for the high glucose fruits, I eat them rarely.
I agree with arr1972 You do have to change your diet to kick start again. My personal belief goes against a lot of theories that you can lose weight simply by a calorie deficit. I truly believe it's also what you eat not just how much.
I also use this calculator which came up with a RDI more to my reality. FS told me 1600 a day, http://caloriecount.about.com/tools/calories-goal
this site told me 1200 and that's what works for me.