Are there any shampoos or inner beauty products that prevent hair loss?

While combining exercise and diet this winter

I went on a diet.

The diet should be protein-focused, such as chicken breast or boiled eggs.

And I also ate salad.

I usually ate one meal a day.

I also ate a regular meal when dining with my family.

I started in early January and have been continuing until now.

The problem is that I feel like I'm losing more hair than usual.

Especially when shampooing and rinsing, or

If you comb your hair after washing and drying it

I can feel like I'm losing a lot of it.

Hair products like shampoos that help with hair loss, or

I'm curious about inner beauty products.

If you've seen results from anything, please share it!