Got a couple of these. Want the rest…
2000 B.C. “Here, eat this root.”
1000 A.D. “That root is heathen. Here, say this prayer.”
1850 A.D. “That prayer is superstition. Here, drink this potion.”
1940 A.D. “That potion is snake oil. Here, swallow this pill.”
2000 A.D. “That pill is artificial. Here, eat this root…”
I suspect the poor things have confused B12 with Vitamin K. Or possibly chlorophyll.