Vitamin the vitamin. People who eat a varied diet are unlikely to develop a severe primary vitamin deficiency. In contrast, restrictive diets have the potential to cause prolonged vitamin deficits, which may result in often painful and potentially deadly diseases. Well-known human vitamin deficiencies involve thiamine (beriberi), niacin (pellagra), vitamin C (scurvy), and vitamin D (rickets). In much of the developed world, such deficiencies are rare; this is due to (1) an adequate supply of food and (2) the addition of vitamins and minerals to common foods (fortification). In addition to these classical vitamin deficiency diseases, some evidence has also suggested
The Days of the Turbins people, caused furore. In its first season, in 1926/1927 "The Days of the Turbins" ran for 108 performance, which was a record figure that year for Moscow theatres. Despite numerous attempts at obstructions, it became a huge a hit, especially with the non-party public. The Soviet press panned it, though, and as the time went by, the severity of the criticism increased. In April 1929 the MAT leadership succumbed to the pressure and the production was cancelled. On 28 March 1930 Bulgakov sent a letter to the Soviet government, protesting against the treatment that the play had been subjected to