0
I wondered this myself, when researching the B-complex vitamins. This comes from Wikipedia, and your question made perfect sense to me!
Many of the following substances have been referred to as vitamins because they were believed to be vitamins at one time. They are not considered vitamins anymore and the numbers that were assigned to them now form the "gaps" in the true series of B-complex vitamins described above (e.g. there is no vitamin B4). Some of them, though not essential to humans, are essential in the diets of other organisms; others have no known nutritional value and may even be toxic under certain conditions.
- Vitamin B4: adenine, a nucleobase, is synthesized by the human body.[28]
- Vitamin B7: is also known as "vitamin I" of Centanni E. (1935)-also called "Enteral factor"-is a water and alcohol-soluble rice-bran factor that prevents digestive disturbance in pigeons. It governs the anatomical and functional integrity of the intestinal tract. Later found in yeast. Possible candidates for this substance are inositol, niacin (nicotinic acid), and biotin. Carnitine was also claimed to be a candidate but is not soluble in alcohol. Ref: Biochim, e terap. sper. 22:137 (April 30)1935 E. Centenni. Presse med. 51 No6 66-7 1943 R. Jacquot (on enteral B7 in Yeast) et. al.
- Vitamin B8: adenosine monophosphate, or alternately myo-inositol, is synthesized by the human body.[citation needed]
- Vitamin B10: para-aminobenzoic acid (PABA)
- Vitamin B11: pteryl-hepta-glutamic acid-chick growth factor, which is a form of folic acid. Later found to be one of five folates necessary for humans; also known as vitamin S or factor S.
- Vitamin B13: orotic acid, now known not to be a vitamin.
- Vitamin B14: cell proliferant, anti-anemia, rat growth factor, and antitumor pterin phosphate named by Earl R. Norris. Isolated from human urine at 0.33ppm (later in blood), but later abandoned by him as further evidence did not confirm this. He also claimed this was not xanthopterin.
- Vitamin B15: pangamic acid
- Vitamin B16: dimethylglycine (DMG)
- Vitamin B17: nitrilosides, amygdalin or Laetrile. These substances are found in a number of seeds, sprouts, beans, tubers, and grains. While toxic in large quantities, proponents claim that it is effective in cancer treatment and prevention[29] despite a lack of accepted scientific evidence.
- Vitamin B18:
- Vitamin B19:
- Vitamin B20: carnitine
- Vitamin B21:
- Vitamin B22: often claimed as an ingredient of Aloe vera extracts but also in many other foods. Claimed by one source to be vitamin B12b-δ.[citation needed]
- Vitamin Bh: biotin
- Vitamin Bm: "mouse factor": also used to designate inositol
- Vitamin Bp: choline[dubious - discuss] Choline is only required for survival of some mutants. Most commonly it is synthesized in vivo de novo.[30] May be added as supplement especially when methionine supply is limited[why?]
- Vitamin Bt: L-carnitine
- Vitamin Bv: a type of B6 but not pyridoxine[clarification needed]
- Vitamin Bw: a type of biotin but not d-biotin[clarification needed]
- Vitamin Bx: para-aminobenzoic acid
Note: B16, B17, B18, B19, B20, B21 & B22 do not appear to be animal factors but are claimed by some naturopaths as human therapeutic factors.[citation
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoSome numbers are skipped in the vitamin B complex due to the sequence in which they are constructed and the order in which they were discovered. There are a total of 8 B complex vitamins ranging from B-1 to B-12.
Add your answer:
Earn +20 pts
What are the zip code of Detroit?
482014820248203482044820548206482074820848209482104821148212482134821448215482164821748218482194822048221482224822348224482254822648227482284822948230482314823248233482344823548236482374823848239482404824248243482444825548260482644826548266482674826848269482724827548277482784827948288The zip code for Detroit, Michigan is 48207.
What is the squiggly line representing skipping some numbers on your y-axis on a graph?
skipping the numbers __________________________________________________________________ The actual name of it is a "break."
Why do we use complex numbers?
Complex numbers are theoretically interesting; they help us better understand the real numbers in some cases.They also have some very practical applications, including: * Electrical circuits - in AC, things like resistance, current, and voltage acquire a phase angle, thus becoming complex numbers. * Quantum mechanics - the probability amplitude is described with a complex number. As a result, complex numbers basically permeate all of quantum mechanics.
Why cant you find the square root of a negative number?
Actually you can. It all depends on whether a complex number is a valid solution in a certain context. In some contexts, complex numbers make sense, in others, they don't.Actually you can. It all depends on whether a complex number is a valid solution in a certain context. In some contexts, complex numbers make sense, in others, they don't.Actually you can. It all depends on whether a complex number is a valid solution in a certain context. In some contexts, complex numbers make sense, in others, they don't.Actually you can. It all depends on whether a complex number is a valid solution in a certain context. In some contexts, complex numbers make sense, in others, they don't.
What are the applications of complex numbers?
There are numerous applications; you should read the Wikipedia article on complex numbers for more examples. Some applications include: Get a better understanding of math. Even if you do calculations with real numbers, working with complex numbers often gives a greater understanding.Electricity, with AC, uses complex quantitites.Quantum physicsArt - ever seen the Mandelbrot set, or other fractals?There are numerous applications; you should read the Wikipedia article on complex numbers for more examples. Some applications include: Get a better understanding of math. Even if you do calculations with real numbers, working with complex numbers often gives a greater understanding.Electricity, with AC, uses complex quantitites.Quantum physicsArt - ever seen the Mandelbrot set, or other fractals?There are numerous applications; you should read the Wikipedia article on complex numbers for more examples. Some applications include: Get a better understanding of math. Even if you do calculations with real numbers, working with complex numbers often gives a greater understanding.Electricity, with AC, uses complex quantitites.Quantum physicsArt - ever seen the Mandelbrot set, or other fractals?There are numerous applications; you should read the Wikipedia article on complex numbers for more examples. Some applications include: Get a better understanding of math. Even if you do calculations with real numbers, working with complex numbers often gives a greater understanding.Electricity, with AC, uses complex quantitites.Quantum physicsArt - ever seen the Mandelbrot set, or other fractals?
How did imaginary numbers impact mathematics?
Imaginary numbers are used in complex numbers that make some math simpler like electronics where there is a cycle frequency it makes the math much simpler to handle complex equations
What number systems include the square root of 49?
Integers, rational numbers, real numbers, complex numbers, quaternions are some systems. Counting numbers is not a valid answer.
Why doctors prescribe vitamin B tablets along with antibiotics?
Long term use of antibiotics decreases the level of vitamin B complex, which is an important vitamin for maintaining healthy nerve cells and production of genetic materials (DNA and RNA). Vitamin B complex can increase the effectiveness of antibiotics and speed up the burning of food to fuel. It is okay to have vitamin B complex along with antibiotics. In some cases, if you are having tetracycline - based antibiotics should avoid the use of B complex because it interferes with absorption and effectiveness of this medication. Sreeja Mahesh PhD scholar
Why have i been having mood swings since ive had my baby?
When you have your baby , your body is changing . If you live north, you should try some vitamin D, and Vitamin b-12 complex. This will also help with your energy level.
What is the function of the bacterial flora that inhabit the large intestine?
Bacterial flora synthesize B-complex vitamins and some of the vitamin K needed by the liver.
Can Vitamin B Complex interact with drugs?
Some medications may be affected by B vitamin supplementation, including those prescribed for high blood pressure; Parkinson's disease (such as levodopa, which is inactivated by pantothenic acid); and epileptiform conditions.
Can a bvitamin complex give you headaches?
Yes, it is possible for some of the components in a B vitamin complex to cause or trigger certain types of headache. Seek the help of a physician for appropriate diagnosis and treatment of any headache disorder.
