Now it's funny you should say that but.
"How Common is Hair Loss for People on Keto?
The first thing to know is, hair loss is relatively common in people on ketogenic diets. It doesn’t happen to everyone, but it happens to enough people that it’s a well-recognized phenomenon.
The formal name for the type of hair loss that occurs on keto is telogen effluvium ( 1), and this distinguishes it from other types of hair loss, such as male-pattern baldness, alopecia areata, or hair loss induced by chemotherapy or radiation.
Thinner hair seems like a small price to pay for the wide range of health improvements you experience on a ketogenic diet, but in our image-oriented modern society, losing a lot of hair can have a powerful negative impact on self-esteem and self-image.
As noted in a paper from the American Academy of Family Physicians, “Physicians should be careful not to underestimate the emotional impact of hair loss for some patients.”"
https://ketodietapp.com/Blog/lchf/why-am-i-losing-hair-on-a-keto-diet