There is currently no explanation of how each vitamin effect the character in-game. The information displayed here is a summary of information found on Wikipedia and through basic Google searches.
This information could be completely, partially, or not at all how the game mechanics work, and is only meant to clear up a bit of confusion when viewing the somewhat overwhelming BCU ICU monitor until confirmed information is given.
Vitamin A
A group of unsaturated nutritional organic compounds that include retinol, retinal, retinoic acid, and carotenoids alpha, beta, and gamma-carotene. An average person should intake 700 µg-900 µg each day.
- Can be found in animal livers, oranges, fish and milk.
- Vitamin A deficiency can cause nyctalopia or night-blindness, a disorder causing the rod cells in the retina to become less sensitive to night, causing vision in low-light conditions can be very difficult.
- Overdosing of Vitamin A can cause blurred vision, low appetite, drowsiness, nausea and vomiting.
Vitamin B1
Thiamine can be found in whole grains, legumes, and some meats and fish. An average person should intake about 1.2 mg daily.
- Vitamin B1 deficiency can be responsible for fast heart rate, shortness of breath, confusion, and constipation. It may also be help lead to Wernicke-Korsakoff syndrome, causing vision changes and ataxia.
- Overdosing of Vitamin B1 can cause drowsiness and muscle relaxation.
Vitamin B2
Riboflavin, like Thiamine, helps the body turn food into energy. An average person should intake about 1.3 mg daily.
- Can be found in eggs, green vegetables, milk, meat, mushrooms and almonds.
- Vitamin B2 deficiency can be caused by alcohol abuse and can cause weakness, anaemia, blurred vision, and hyper-sensitivity to light.
- An overdosage of Vitamin B2 is nearly impossible as isn't stored in the body and excess amounts will be passed.
Vitamin B3
Niacin
- Can be found in meat, fish, mushrooms and an assortment of vegetables. An average person should intake about 16 mg daily.
- Severe Vitamin B3 deficiency can cause Pellagra, of which sensitivity to light, weakness, confusion, ataxia, and diarrhea are known symptoms.
- Overdosage of Vitamin B3 can cause headache, abdominal pain, diarrhea, vomiting, and liver damage.
Vitamin B4
Not truly a vitamin, It's a set of chemical compounds Adenine, Carnitine and Choline. Works with other B vitamins to speed up the production of energy in the body.
- Can be found in whole grains, leafy greens and berries.
- A deficiency in "Vitamin B4" can cause nausea, poor immune function, fatigue, slow physical growth and muscle weakness.
- Overdosing "Vitamin B4" will cause nausea and diarrhea.
Vitamin B5
Pantothenic Acid is required for the body is metabolize proteins, carbohydrates and fats. An average person should intake about 5 mg daily.
- Can be found in meat, broccoli and avocados.
- Vitamin B5 deficiency is rare. But can cause fatigue and apathy.
- An over-dosage of Vitamin B5 is practically impossible, but if forced through high intake of supplements it can cause diarrhea.
Vitamin B6
A group of chemical compounds needed for proper brain development and production of seratonin and norepinephrine. An average person should intake about 1.6 mg daily.
- Can be found in meat, vegetables, nuts and bananas.
- Weakened immune function, low energy and seizures in extreme cases are symptoms of Vitamin B6 deficiency.
- While not common, over-dosage of Vitamin B6 for very long periods of time can cause severe nerve damage.
Vitamin B9
Folates are crucial in periods of increased cell growth and division, such as infancy and pregnancy. The average person should intake about 400 µg daily.
- Can be found in Leafy vegetables, bread, cereals and animal livers.
- A deficiency of Vitamin B9 can cause memory loss, depression, phychosis, muscle cramping, cancer and heart disease.
- Overdosing Vitamin B9 in healthy individuals is effectively harmless, but can be harmful for people deficient in Vitamin B12.
Vitamin B12
Cobalamin is important in the proper function of the nervous system. An average person should intake about 2.4 µg daily, but there is practically no upper limit to dosage.
- Can be found in meat, chicken, fish and milk.
- Vitamin B12 deficiency is a condition that causes anemia, a reduced amount and production of red blood cells. This leads to weakness, fatigue, dizziness and high temperature.
- Overdosing Vitamin B12 is essentially impossible.
Vitamin C
Ascorbic Acid is an essential nutrient and antioxidant that protects cells from damage caused by compounds created when the body turns food into energy. An average person should intake about 90 mg daily.
- Can be found in fruits and vegetables and animal livers.
- Scurvy is the most common effect of Vitamin C deficiency. It can cause wounds to heal poorly.
- Vitamin C overdose is not likely because it is not stored in the body, but it can cause diarrhea and nausea.
Vitamin D
A fat-soluble subclass of steroid that helps increase absorption of calcium, magnesium and phosphate. An average person should intake about 15 µg daily.
- Can be found in animal livers, certain fish, and mushrooms such as shitake.
- Deficiency in Vitamin D can increase the chance of death from cardiovascular disease, and contribute to the causes of certain cancers.
- Overdosing Vitamin D can cause vomiting, weakness and frequent urination.
Vitamin E
An antioxidant, with effects similar to Vitamin C. An average person should intake about 15 mg daily.
- Can be found in Many fruits and vegetable, as well and nuts and seeds.
- A deficiency of Vitamin E can cause difficulties with walking and coordination, cause weakness and visual problems.
- Vitamin E over-dosage is difficult and uncommon, but can cause blurred vision, weakness, dizziness, nausea and diarrhea.
Vitamin K
Used by the body to help thicken and clot blood to slow or stop bleeding quicker. An average person should intake about 110 µg daily.
- Can be found in leafy greens, egg yolk and animal liver.
- Vitamin K deficiency causes a dark black stool, as well as easy bruising and excessive bleeding.
- Overdosing Vitamin K is difficult because it is not stored in the body. There are few symptoms, and even fewer worth noting.