According to CNN-
B6 can prevent lung cancer from forming by 50%. Studies and tests are still being run but in the mean time scientist are optimistic about their findings.
B6 can be found in such foods as meats, poultry, fish, grains, beans and some fruits and vegetables – such as avocados, broccoli and bananas.
CNN- B6 may play anti-cancer role
Vitamin B6
- functions: protein and amino acid synthesis used by bodybuilders, as well as, for the treatment of premenstrual syndrome (PMS), carpal tunnel syndrome, schizophrenia, childhood autism, and attention deficit hyperactivity disorder (ADHD) with variable results.
- about: required for the synthesis of the neurotransmitters serotonin and norepinephrine and for myelin formation.
- found in such foods: cereal grains, legumes, vegetables (carrots, spinach, peas), potatoes, milk, cheese, eggs, fish, liver, meat, and flour.
- deficiency in adults mostly affects the peripheral nerves, skin, mucous membranes, and the blood cell system. In children, the central nervous system (CNS) is also affected. Deficiency can occur in people with uremia, alcoholism, cirrhosis, hyperthyroidism, malabsorption syndromes, congestive heart failure, and in those taking certain medications.
- RDA : Males (19-50 years) 1.3 milligrams; males (51 years and older) 1.7 milligrams; females (19-50 years) 1.3 milligrams; females (51 years and older) 1.5 milligrams. Some researchers think the RDA for women 19-50 years should be increased to 1.5-1.7 milligrams per day. Pregnant women, 1.9 milligrams; and lactating women, 2 milligrams.
- Max RDA : Adults, pregnant, and lactating women (over 18 years) 100 milligrams. A doctor and pharmacist should be consulted for dosing in other conditions.
Vitamin B12
- functions:helps maintain healthy nerve cells and red blood cells and is also needed to make DNA, the genetic material in all cells
- about: It is bound to the protein in food. Hydrochloric acid in the stomach releases B12 from protein during digestion. Once released, B12 combines with a substance called intrinsic factor (IF) before it is absorbed into the bloodstream. essential water-soluble vitamin that is commonly found in a variety of foods.
- found in such foods:fish, shellfish, meat, and dairy products
- deficiency: Studies have shown that a deficiency of vitamin B12 can lead to abnormal neurologic and psychiatric symptoms. These symptoms may include: ataxia (shaky movements and unsteady gait), muscle weakness, spasticity, incontinence, hypotension (low blood pressure), vision problems, dementia, psychoses, and mood disturbances. Researchers report that these symptoms may occur when vitamin B12 levels are just slightly lower than normal and are considerably above the levels normally associated with anemia. People at risk for vitamin B12 deficiency include strict vegetarians, elderly people, breastfed infants, and people with increased vitamin B12 requirements associated with pregnancy, thyrotoxicosis, hemolytic anemia, hemorrhage, malignancy, liver or kidney disease. Administering vitamin B12 orally, intramuscularly, or intranasally is effective for preventing and treating dietary vitamin B12 deficiency.
- RDA: adults men - 2.4 mcg, female- 2.4 mcg. pregnant women 2.6 mcg and lactation 2.8 mcg
sources:
http://www.mayoclinic.com/health/vitamin-b6/NS_patient-b6
http://www.b12vitamin.com/#rda
http://www.mayoclinic.com/health/vitamin-B12/NS_patient-vitaminb12/DSECTION=dosing
