I wouldn't try it if I needed to lose weight , to be honest. It was initialy designed for people suffering from epilepsy. I think the best diet is one where you balance everything instead of going low on carbs or something.
Give up bread, sugary drinks actually sugar in general (you can eat fruits though as sugar is low and theres always fiber in them which reduce your body's propensity the store it as fat), and try to exercise at least 3 times a week (cardio if youre trying to lose weight) and you'll be fine and healthy.
I also recomand intermittent fasting.