Is there a secret to a summer diet that doesn't drain your energy?

I usually tend to eat a bit or have a big appetite, but since I am also on a diet, I want to suddenly cut back.

I lost so much energy that I actually felt sick.

It is a wrong dieting method and blindly

I think it's because I ended up starving myself or drastically reducing my portions.

Because of work life and the heat

The method of suddenly reducing meal portions or skipping meals at night

I'm worried that I might lose energy and collapse.

Gradually without a decline in condition or anxiety

I want to improve my diet and habits.

Maintaining energy in daily life while controlling gluttony and appetite

Naturally controllable

I am curious about healthy dieting methods.

Are there any realistic tips that can be implemented without difficulty?