My fellow anon.
I did not believe it until I tried after my brother convinced me to try it. Only the 1st few days were a little tough. I ended up going from 300lbs to 280lb after a month. It then slowed down but I am still losing and close to 250lb.
Gave me more energy and I have lost my brain fog.
Looks up Dr Ken Berry Keto on youtube.
The key is Keto with intermittent fasting.
Here is a great start playlist from him
https://www.youtube.com/playlist?list=PL48jnTudSMf_4z7qfiymmOf-xbYJJUSDX