What could I lose in the next 10 days?

[elsaandanna]

Jeans are too tight!

Could I lose 10 pounds in 10 day doing the Fast 800? Or meal replacements?

I have seen big losses in the first weeks of a strict diet. I have over 3 stones to lose so I'm not starting skinny.

Alternatively, instead of risking doing something unsustainable and ending up throwing the towel in, you could do slow and sustained. Lose 4/5 lbs over the 10 days then continue to lose a couple of pounds a week until at target. That way you still get a nice Christmas, don’t risk all the weight piling back on as soon as you pop a roast potato in your mouth, and won’t end up miserable and back in the same boat.

I could. But I thought the short, sharp shock might stop me overindulging during my Christmas break. I would not want to try to undo my good work...

I always thought that too, but then ended up stuffing my face because ‘hang it, I’ve ruin it now by eating one…I may as well eat the box’ 😂

I’ve lost, and kept off, just over 3&1/2 stone. Working out my TDEE, reducing the calorie total by 20% to get a calorie target for weight loss, and tracking on My Fitness Pal has been life changing.

https://tdeecalculator.net/

Depending on how overweight you are, yes on Fast800 you could lose 10lbs in 10 days.
Harder if you're already 'normal weight', easier if you're clinically overweight or obese.