Diet Hair Loss

diet hair loss

Does not consuming enough iron in your diet lead to hair loss?

I don’t want your opinion. I want a verifiable source, please!

Severe anemia can lead to hair loss.
http://www.hairlosslibrary.com/hair_loss_iron.html
But it is ‘One of the oldest nutritional myths is that people who follow a vegetarian or vegan diet are at greater risk of iron deficiency [...]