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> who patented a product called Rose’s Lime Juice. This worked as well as lemons, and the Royal Navy mandated that the product be issued to all ships

Limes did not work to prevent scurvy. Steam ships just happen to be fast enough that nobody noticed. This is why everyone in Scott’s polar expedition got scurvy - limes didnt work, but they thought they would.

https://timharford.com/2022/08/cautionary-tales-south-pole-r...

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Wrong. Limes do prevent scurvy. However the British Navy at that time failed to distinguish between limes and key limes, believing them to be the same fruit. Key limes have very little ascorbic acid (vitamin C) and they were further processed and stored in a way that eliminated what little vitamin C they had.

> Limes do prevent scurvy. However the British Navy at that time failed to distinguish between limes and key limes, believing them to be the same fruit. Key limes have very little ascorbic acid (vitamin C)

There is no single fruit called just "lime", its a category of fruits which includes key limes.

https://en.wikipedia.org/wiki/Lime_(fruit)

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