Why there is no Vitamin "F" after A,B,C,D &E but Vitamin"K"?

Answer 1

The Vitamin alphabet

The naming of vitamins began with Funk’s isolated concentrate. The molecule present here was called vitamin B, since it cured Beri beri disease. Following this, vitamins were name alphabetically: vitamin A was discovered in 1913-1914, and then in chronological order, vitamin C, vitamin D which could cure rickets disease, and vitamin E which was important to fertility. The later discovery of a vitamin required for blood clotting led to the naming of vitamin K where the K denotes koagulation.

One particular group of vitamins was found to have similar properties and functions, in that they are all coenzymes (aids to enzymes). These are the B group vitamins, which are all water-soluble. Initially, they were given numbers, but as their chemical structures were determined, they were given names which are now increasingly used. A list of the main B vitamins is given below:
B1Thiamine
B2Riboflavin
B3Nicotinamide (also Vitamin P or Vitamin PP or Niacin)
B5Pantothenic acid
B6Pyridoxine
B7Biotin (also Vit H)
B9Folic acid (also Vitamin M and Vitamin B-c)
B12Cobalamin

There are also a number of associated chemicals which resemble B vitamins and may or may not have vitamin status. These include choline, inositol and para-aminobenzoic acid, as well as vitamin B15 (pangamic acid) and vitamin B17 (amygdalin)

Some of the other vitamins also have common names. Vitamin A is commonly known as retinol. Vitamin C is called ascorbic acid, and the common name of vitamin E is tocopherol.

In the past there have been a number of other molecules classed as vitamins, and the letters F, G, H, M and P have all been used to denote them. However, there is no longer a comprehensive alphabet of vitamins. Some letters are used to denote other micronutrients such as minerals.

The Naming of Vitamins by Ed Blonz, Ph.D.
-----------------------------------------------------------------------------------
First a little background on vitamins:

The word vitamin was coined in 1912 by Dr. Casmir Funk, a Polish scientist who was searching for a cure for beriberi, a paralyzing disease that was common in regions where white rice was the main staple in the diet. Earlier work had zeroed in on rice polishings--the husk and bran that are removed when brown rice is made into white--as containing some factor that could
combat beriberi. Funk eventually identified the key compound, called thiamin, and dubbed it a "vital amine." This was shortened to "vitamin," which continues to stand for the entire class of essential compounds.
------------------------------------------------------------------------------------
Orignally it was not imagined that there would be so many different vitamins. Back in 1913, the scientists came up with a naming system that was based on two groupings; those that would dissolve in fat, called "Fat soluble A" vitamins, and those that would dissolve in water, referred to as the "Water Soluble B" vitamins.

The vitamin compounds were named in order of discovery, and when it was determined that there were many, they moved on to C, D, E and so forth. Many times a substance thought to be a vitamim was found to not be essential. When this happened, the letter was passed by and the next one used.

In some cases, the first letter for the function of the compound was used in its name. For example vitamin K comes from the German "koagulation" (coagulation), which is a term that stands for the clotting of blood, a process in which the substance called vitamin K was found to play a role.

The "B" vitamins were thought to be only one compound. But when it was found that there were many involved, they were named vitamin B1, B2 and so forth. Again, when a compound thougt to be a vitamin proved to not have any essential quality, the number was abandoned.

:-)

Answer 2

Vitamin F

Answer 3

Vitamin F is recognized in the cosmetics industry for preventing dry skin and soothing skin irritated by cold and wind.
Vitamin F allows epidermal cells to regain water tension while decreasing their impermeability and strengthening skin against outside aggressions.

Answer 4

Vitamin F is classified under 'Essential fatty acids '
it is Needed in large quantities, but does not fit the definition of vitamin

Vitamin G Riboflavin Vitamin B2 Reclassified as B-complex

these vitamins are not of importance or as crucial so they are omitted.

Answer 5

Replace "i.e." with "in other words" and "e.g." with "for example" and you'll understand the meanings, and never confuse them again!

Answer 6

vitamins are not named based on alphabetic order. they r divided into 2 main grps- fat & water soluble. fat soluble- A,D,E,K & water soluble-vit C & B complex

Answer 7

a nice question you got there!!



i don't know the answer but i'll also ask people to help you get your answer:-)

Answer 8

Yeah...it's because....I got nothin' never mind.