haha
2 year ago i told my friend eat fat to lose kg.
2 month later he called me he didn't lose any but gain weight by eating too much lamb and butter.
It turns out he eat his FATY food with Fresh baked BREAD non stop.
When you eat your fat with buns (big mac) it means disaster ...

for most people it is not possible to eat fat without some side help(pasta-rice bread potato corn)