I believe it's the Masai in Africa who drink a mixture of goat's milk and blood. The milk will dilute the salt content of the blood.

You CAN drink urine or blood, but you need to have water to dilute the effects. By themselves, they are just multiplying the original problem (dehydration) in a survival situation.

It's not going to do any harm to some guy who just watched Bear drink his urine and copies him, when the guy is awash with beer. It's not a survival situation.

Sue