The story of scurvy is way more complicated that this article would have you believe. Lind partially shot himself in the foot by attempting to a make lemon juice more portable (and easier to store on a ship). He did that by boiling down the lemon juice to form a "rob." But he never tested his rob and had he done that, he would have realized that the boiling of lemon juice destroyed that vitamin C inside (this is in addition to the issue of copper pots, etc). So folks at sea, used the rob, and it didn't work. And then there is how Captain Cook muddle the issue, but because he had a big reputation and that carried way.

The history here is complex and very unsatisfying due to gaps in the historical record, but it' darn interesting.