Hi Mich
I have been on tamoxifen for 14 months and it too has a bit of a reputation for making weight loss difficult. However I slowly lost a total of 9kg during the first few months after finishing chemo (put on 3kg during chemo) and have maintained that for over 6 months now.
I believe it helped me to research about hormone therapy, weight gain and recurrence of BC. Research has shown that it is the side effects of hormone therapy rather than the actual drug itself that can make weight loss difficult. For example fatigue and aches and pains can make it harder for people to exercise. Fatigue and chemo brain can make it hard to plan, shop for and cook healthy food. So it helped me to not think that taking hormone therapy was automatically going to mean weight gain or no weight loss. I just knew that it might mean I would need help (saw a physio for advice on exercise, researched lots about healthy eating) and need to be really motivated.
Threat of recurrence was my motivator. I know that my chance of recurrence is already higher than I would like due to extensive spread into lymph nodes at time of diagnosis. I read that research has shown that exercise and maintaining a healthy weight (my BMI is now 22 instead of 25.8 at time of diagnosis) definitely reduces your chance of recurrence.
I made simple changes to my eating, slowly, one thing at a time. I think about food differently now. I really only eat food that I like and that I know is nutritionally good. I just have to think about having to go through diagnosis and chemo again (or a secondary diagnosis) and suddenly chocolate cake or caramel cheesecake ( I had a very big sweet tooth!) is no longer on my wish list! I eat smaller meals, rarely eat between meals and don't eat unless I am actually hungry. I used to eat when I got tired, now I exercise instead.
I exercise every day (brisk walk morning and evening, 5km in total, swim, pilates) and find this helps to lessen the side effects of hormone therapy as an added bonus!
So basically I eat less and move more since diagnosis. I think that treatment such as chemo and hormone therapy makes losing weight harder (because of fatigue and pain) but motivate myself using that threat of recurrence. Keeping a food and exercise diary can really help. Getting professional help from a physio experienced with recovery from BC really helped me to get moving. It is tough but I found a lot of support on this network. The Healthy Eating booklet and the Exercise booklet that BCNA have produced are great sources of good info too. Hope this helps. Good luck with it. Deanne xxx