ABCs of Good Health

This Is Why There Is No Vitamin F-J

This Is Why There Is No Vitamin F-J

At myvitamins, we love vitamins & minerals, but one of the questions we get asked a lot is why there are 5 vitamins missing between Vitamin E and Vitamin K.

Vitamin F, G, H, I and J might seem pretty much non-existent, but you may be interested to know that some do exist with a different name, or that some simply did exist but, after descriptions for what ‘vitamins’ actually means, lost credibility.

Take a look here and be the first to know amongst your peers why there are no named vitamins between Vitamin E and Vitamin K. This has to be a future pub quiz question, surely?! (Hint: B Vitamins are one day going to take over the world).

Why there is no Vitamin F, G, H, I or J 

What happened to… Vitamin F?

If you eat fish, you’re probably consuming high levels of Vitamin F. Bananas, nuts and spinach also have loads of Vitamin F. The reason it’s not actually called Vitamin F is because it became reissued as an Essential Fatty Acid (EFA) many moons ago, as it doesn’t have an independent organic composition (according to Stedman’s Medical Dictionary ‘vitamins’ are defined by being minute in natural foodstuffs and are essential to normal metabolism. It’s actually pretty much identical to Vitamin B6 when it comes to substance.

What happened to… Vitamin G? 

Vitamin G has gone through quite a few name changes over time and was initially changed to be named ‘Riboflavin’. It then got changed again to Vitamin B2. B Vitamins are a special class of vitamins as they are water-soluble and are essential for cell metabolism. You get your Vitamin G from foods like eggs, milk and meat and are important for cellular respiration in particular.

What happened to… Vitamin H? 

Similar to Vitamin G, Vitamin H has gone through loads of name changes. Initially renamed as Biotin, and then changed to Vitamin B7, Vitamin H is essential for healthy hair, skin and nails. It also helps promote healthy metabolic, nerve, digestive and cardiovascular functions.

What happened to… Vitamin I? 

This is a boring one. There is no record of a historical Vitamin I. Sorry.

What happened to… Vitamin J?

Vitamin J is very similar compositionally to Vitamin G and is commonly associated with riboflavin and another non-essential substance, catechol. Due to its similarities with riboflavin, Vitamin J has also been reclassified as Vitamin B2.

Want to know more about all the remaining Vitamins? Check out our A-Z guide of vitamins and minerals.

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Charlotte Cliffe

Charlotte Cliffe

Resident Nutritionist (ANutr)

Qualified nutritionist, health blogger and marketing executive who loves festivals and eating kiwi with the skin on...


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