you laugh, but I discovered that my friend's autistic son had scurvy. He's in his mid twenties. His diet is so limited that he ate nothing that contained vitamin c.
How did I figure out that he had scurvy? I got an opportunity to watch him eat. He was chewing very strangely. In scurvy, teeth loosen up fairly early on, and this was happening to him, although he never admitted it was true. He got caught up in vitamin C and now that's better