Despite this program, by the mid-1930s, white schools in the South were worth, per student, more than five times what black schools were worth per student (in majority-black Mississippi, this ratio was more than 13 to one).
There is no vitamin B17. The term is inaccurately applied to laetrile, a discredited cancer drug, and amygdalin, the natural substance from which laetrile is made. Amygdalin occurs in the seeds of apricot, peaches, and almonds.
It can also be made in a laboratory. Vitamin B12 is used for treating and preventing vitamin B12 deficiency, a condition in which vitamin B12 levels in the blood are too low. It is also used to treat pernicious anemia, a serious type of anemia that is due to vitamin B12 deficiency and is found mostly in older people.For this purpose, people use either a supplement that is taken by mouth or a gel that is applied inside the nose. Injecting vitamin B12 as a shot for 10 days followed by monthly injections for the remainder of life is effective for treating people with an inherited disease that results in poor absorption of vitamin B12. 2  Pernicious anemia.