What is your reason for being on keto?

I am interested in trying keto but only for a short time, like 2 weeks or something. I am just curious about it and want to see if I different on it and have more energy. But I am vegetarian, lactose free, low FODMAP. I’m not sure if it’s even possible to do with these restrictions?

I am also aware that there are risks of this diet so I want to know why you are on it. Should you only try keto for very specific reasons or could you try it for no medical reason?