It has a wavelength shorter than 1 pico (really, that pico) meter.
It has enough energy to blow away the covalent bond electrons of the atoms that make up fat.
If you expose yourself to the sun for a sufficient period of time, you can lose weight because fat is broken down.
There is a minor side effect of breaking covalent bonds of not only fat but also water, nucleic acid, and protein.
In any case, it is true that it is the frequency that breaks down fat and causes weight loss.