I would not make it part of your diet. Occasionally we all swallow a strand of hair, but if you are continuously swallowing hair, there will obviously be a cause and effect of some type. We are not cats who can cough up hair balls!
Another answer
no it is not good because hair balls are going to start growing inside your body. and then you can not breath.
It's generally safe with the plastic clip type. The only danger is them trying to swallow it.
Yes, people who chew their hair often swallow it and sometimes get hairballs.
No. It isn't safe for a child to swallow anything that isn't food.
If you swallow your own semen, then no, you can't get anything new. It's quite safe. It's fairly safe, too, to swallow someone else's semen.
no
yes of course you will you swallow with your hair don't you? Yeah, I'd say you'd probably cough.
Yes, it is safe to swallow saliva. Saliva helps with digestion and keeping the mouth clean.
yes, it is!
no
through the esophagus to the stomach and the rest of the intestional tract.
Yes - a human can swallow pretty much any kind of hair, but you've probably noticed that when you get a hair in the back of your throat it tickles and irritates and you feel the need to cough to get it out.
Yes it is safe usually to swallow a mouth or two of bath water. I wouldn't drink it though as it will contain unpleasant tastes of soap or shampoo !