Interesting, going to read more!

Thanks! I'll add it when I get a chance.

There are lots of citruses missing; the ones in the chart are only the ones I could find reliable values for (from the sources at the bottom). I'll add more if I can find other reliable sources. For what it's worth, I think the etrog is basically a pure citron variety.

Yeah, that's definitely an issue. If I get a chance, I'll curate images to add!

Fascinating. Look forward to your update.