How can Ayurveda help with losing weight?

[Lilyth Von Gore]

So, it's been a while since I was last here.
I recently moved out of my Grandparents house and into my own flat. Yay.

Recently, I decided that I wanted to join the Armed Forces.
They use BMI as an indicator of how healthy you are.
So, I weighed myself. 14st and 3lbs, or 90kg.
That's borderline obese.

I suffer from depression and PTSD, as some of you may know.
I am also unemployed. I don't have an oven or a stove, and a lot of the time it comes down to either eating, or heating/lighting my flat.
That also means I can't afford to go to the gym or go swimming as often as I would like. I do go for walks most days.

I read somewhere that Ayurveda can help with losing weight.
Considering that I'm thinking of joining the Armed Forces, I kinda need to lose weight and build muscle. Fast.
How can Ayurveda help?