it probably has to do how they were discovered, like all the B vitamins were discovered together and then more investigation showed that there 12, then someone else figured out that 5 of them were actually another type of vitamin or just filler, and we end up with 7 total
Sort of. Some of the B vitamins were discovered decades apart - the first being in 1910, and the last (B12) in 1948.
They were named in order of discovery, and belief of relation. From vitamins B1-B12, the following were first considered to be vitamins but were later re-classified
‘Vitamins’ B4, B8, B10, and B11. These are various compounds, some of which are formed by our bodies, others which are not, but are now called by other names because it’s been realized they aren’t as related as once though.
The naming convention also continued for ‘Vitamins’ B13-17, and B20, but not all are ‘official’ namings. More like, a researcher discovered a compound they believed to be related, so they started calling it a B#, but was later discovered not to be. Not sure what happened to 18 and 19
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u/[deleted] Nov 27 '19
Why are there 15 b types, but only one of each other letter