I am diabetic and very resistant to weight loss. I lost 40 lbs on Atkins before I became diabetic (weight gain while on low carb is what caused me to go to the doctor when I was diagnosed with diabetes).
Diet is important, but age has something to do with weight gain also--as my doctor told me yesterday. A low-carb diet (which is beneficial for me and allows me to avoid wheat, corn, and sugar allergies) and exercise helped me lose 7 lbs in 6 months. I was not happy with that (since my previous low carb experience was a loss of about 10 lbs a month--and years of on-goal before carb-creep causing me to start gaining again).
Because I am post-menopausal and diabetic, my doctor prescribed phentermine. Today is my first day on it, so I will try to keep you posted. I am still on Atkins, I can't stop that just because of a diet pill--I need that eating plan for other health benefits (not just the potential for weigt loss).