Hi, I am doing the fast 800 and am type 2 but waiting for results of antibody test as they think I might be LADA.
It’s tough initially and I have kind of tweaked it in that I am normally around 900 cals or so - I found I was getting hypos on 800- but I have extra complication of being coeliac and vegan. I stick to dr moseley’s rule from the fast 800 keto book which is eat less than 50g carbs and more than 50g protein per day. It has really helped me and after an initial period of the scales not moving it suddenly kicked in and in total since March I’ve lost around 8kg - I started low carb 12 weeks ago and started fast 800 ish about a fortnight ago.
I get fats from nuts, avocados, olive oil on roasted veggies, and make sure I get lots of protein-this should be easier for you if you’re not veggie/vegan. Having enough fats fills me up and I don’t crave carbs like I did and I fill up on green veg so I don’t really feel to hungry. I’m also doing intermittent fasting so only have lunch and dinner.
Hope this helps and good luck!