"Symptoms of mild deficiency include indigestion, fatigue, canker sores, vomiting, and depression. Severe deficiency can cause a condition known as pellagra. Pellagra is characterized by cracked, scaly skin, dementia, and diarrhea. It is generally treated with a nutritionally balanced diet and niacin supplements. Niacin deficiency also results in burning in the mouth and a swollen, bright red tongue."
night blindness is cuased due to the lack of vitamin eye .
scurvy, from vitamin C deficiency
The deficiency of vitamin E is very rare. But still it may cause haemolytic anaemia.
Sickness may be due to pathogen and not deficiency of vitamins.Each vitamin deficiency leads to specific symptoms.eg: night blindness due to lack of vitamin A and E,rickets due to lack of vitamin C etc. which is not sickness.
Beriberi is caused by a lack of vitamin B1, pellagra by a lack of vitamin B3, while pernicious anemia is due to a lack of vitamin B12. A lack of Vitamin B is simply called a Vitamin B Deficiency.
Beriberi (also called lack of vitamin B1), beriberi is a systemic disease which was due to a lack of vitamin B1 in vivo . http://beriberi-disease.blogspot.com/2009/04/beriberi-is-caused-by-vitamin-b1.html
pressure on the heart caused by fluid in the pericardial space
Perncious anemia is caused by the body's inability to absorb the vitamin B12 from the gastrointestinal tract, due to a loss of gastric parietal cells. Regular B12 supplementation can keep pernicious anemia at bay, though it is not a complete cure. B12 is a vitamin obtained from meat and dairy products.
If you have a lack of vitamind B6 it is harder fro you to poo.
It is due to the deficiency of Vitamin B3 (Niacin)
stickers
Osteoporosis