Table 4.

Most similar and most distant (in cosine similarity) tweets to misinformation quotes regarding Alzheimer disease.

FDAa misinformation quote	Most similar tweet	Most distant tweet
“CBDb oil may have neuroprotective properties and may protect against neurological conditions, such as Parkinson’s and Alzheimer’s disease”	@<MASKED-USER> @<MASKED-USER> @<MASKED-USER> @<MASKED-USER> @<MASKED-USER> “On the up side, some evidence suggests THCc and CBD may be neuroprotective, so there’s a rationale for some MMJ for you. Alzheimer’s prophylaxis”	@<MASKED-USER> “do not believe he was the co-owner and while the store is definitely shitty, the sign did not say CBD cures autism”
“Possible uses for CBD include helping with skin problems such as acne, autism, ADHDd, and even cancer. It’s often used in conjunction with traditional treatments to provide extra help. Children can use high amounts of CBD safely and without any risk.”	“CBD is recommended as a treatment for conditions such as seizures, depression and anxiety, and symptoms such as sleeplessness, inflammation, acne, and pain. It has also proven to be effective in treating autistic children. \nSource: <MASKED-URL> <MASKED-URL>”	“4) Sydney is demonstrating that she understands what effectual customer demands are, which is going straight to the source to demand change. She did not see a phone number she could call on the sign that promoted CBD as a cure-all for autism, so she went in to ask for one”

^aFDA: Food and Drug Administration.

^bCBD: cannabidiol.

^cTHC: tetrahydrocannabinol.

^dADHD: attention deficit hyperactivity disorder.