Vitamin T is a fictitious substance claimed to have nutritional effects. True vitamins are micronutrients important in metabolism. As there has never been a substance isolated in pure form called Vitamin T it can not be termed a vitamin. No reputable sources exist which characterize this. Vitamin T is referred to in some sites as Sesame Seed Factor but no published source describes it beyond that. Western medical practice would suggest that a substance which is chemically unspecified, and whose metabolic function is unknown, is not a nutrient.
Naturopathic sources use the term as follows: Little is known about the precise role that the alleged Vitamin T plays in the body, although it is claimed to help in blood coagulation, prevent some hemophilia, and anemia, and play a role in forming blood platelets. Some sources have suggested it may improve concentration.
According to these sources, it is found in the egg yolk and sesame seeds.
No credible medical evidence supports these curative/preventative claims at this time.
Vitamin T is also an informal slang term for testosterone.
Vitamin E deficiency is rare, and occurs almost exclusively in people with an inherited or acquired condition that impairs their ability to absorb this vitamin.
Vitamin E is also used to protect against the effects of pollution and overexposure to the sun and to lessen the risk of developing cataracts.
Vitamin E is an antioxidant, a compound that blocks the action of activated oxygen molecules, known as free radicals.
Vitamins can either be classified as water soluble, which means they dissolved easily in water or fat soluble, which means they are absorbed through the intestinal tract with the help of fats.
Vitamin V is a colloquialism for Viagra, Vitamin Z for Zoloft, and Vitamin R for Ritalin, especially when implying that these drugs are overprescribed (or, as a hyperbole, taken as commonly as vitamins).
Likewise, Vitamin A and Vitamin C are sometimes used as slang terms for alcoholic beverages and caffeine, respectively.