This is a joke but I lost 20 pounds so far just by eating half as much as I normally would.

Reminder to readers thay there is a stark difference between “cutting back” and starving yourself.

Smaller portions and less calorie-dense options make a huge difference over time.

This might sound weird, but after a point it’s easier to just forego eating. It can be kind of dangerous how effective it is, but anyone who has gone a long time without food probably recognizes how their body stops bothering them with hunger.
It can but it’s dangerous and not recommended due to the many negative health effects.
Not really, you can safely eat nothing for an entire month