In 1922, vitamin E was discovered - by scientists Bishop and Evans. Vitamin E is rightly called the vitamin of "fertility and youth", because it restores the body when aging processes go on, and increases the productivity of male and female genital organs.
In the thirties of the XX century, vitamin D was first synthesized and studied. This vitamin is very interesting to the world of science, since it is both a vitamin and a hormone. It can enter the body both with food and can be produced by the body when exposed to sunlight.
In 1923, vitamin C was first extracted from lemon juice, and already in 1930 its production and synthesis were established in the industry. To date, vitamin C is a powerful antioxidant, anti-inflammatory and antiallergic.
The history of the discovery of vitamin B15 is extremely interesting. It was first discovered in the bovine liver in 1950 by the scientist Tompia, and later it was synthesized from the apricot kernel by the American Krebs.
This vitamin was discovered in 1905 from the remains of distilled raw materials. It was a new growth factor, called DDS, and later renamed vitamin B13. It positively affects the development of the fetus in pregnant women, and also performs many other functions.