Not quite that much, but over 4 stone off and I have kept it off.
TBH is doesn’t matter what you eat, as long as you are in a calorie deficit.
I regularly eat chocolate, but if I do I know I have to reduce calories in other meals that day to make up for it.
My Fitness Pal has been an absolute game changer. It’s tiresome to begin with, but once you have favourites and recipes logged in, it takes seconds to log your food.
You do have to accurately weigh and log everything you consume, but it has helped me make better food choices and it helps me keep on track. You also have to accept that you may feel hungry occasionally, because if you choose to eat (or drink) a high calorie item it means other meals that day may be smaller.
I wish MFP had been around in my 30’s. I might then have never needed to lose 4+ stone if it had!
My fibre and protein has increased, because fibre especially is very filling, and my carbs have really reduced. It means my plates can be satisfyingly full as I’m not wasting calories on things that aren’t so filling.
Quinoa and lentils added to stews/soups make a huge difference to the portion size you can have with a lot less calories than potatoes/rice for example.