Snopes reached out by email, and apparently the guy, Dr Robb, did indeed write this note, however it was only intended for close friends and family, not widespread public distribution. He said he may not have quite understood the modern meaning of the word ‘share’. One thing that I think we now know he got wrong is the thing about snakes, that’s been refuted. No idea how effective zinc lozenges are, but probably won’t do any harm (unlike zinc nasal spray where there have been reports of loss of sense of smell).
https://www.snopes.com/fact-check/zinc-lozenges-coronavirus/
I recall reading about cases of permanent damage to sense of smell from an OTC zinc spray. Are the lozenges (which are a different delivery route) known to be safe?
Further commentary: The gloves won’t help unless you always use the correct technique to remove them without touching the outside, but if they remind you not to unthinkingly touch your face, they work. Elbow vs tissues, well if you can’t wash your hands right away, the tissue method just means you have hands with a coating of whatever.
The advisory about lung tissue was helpful, but food seems to be a vector. There was a case where eating from shared ‘hotpot’ serving dishes passed it to a whole family.