HI, I'm 55 yrs old and absolutely determined to lose about 100 pounds. I recently had back and knee surgery due to an injury and need to drop this weight. I'm not sure how I am going to exercise because of physical limitations but would love to hear from anyone who has any suggestions. Going low carb for the diet part.

Welcome!

There are many forms of carb restriction and you'll find folks representing many of them here.
http://www.3fatchicks.com/forum/carb-counters-117/
Make yourself at home, post, ask questions. We're here to help!

Hi Neekers. I am with you on needing to lose @100 lbs. I also had back surgery. Mine was done 2 1/2 years ago but I still have many other back issues and cannot work out like others. I do have a recumbent bike that I use a couple days a week so that might be something you can do if your knees can handle it. Good luck with everything.

Hi and Welcome!

The fact that you are determined, is a good prediction that you will be successful!