Vitamin B6 deficiency is very uncommon but can be caused malnutrition or poor quality diet.

Clinical symptoms include:

• dermatitis
• atrophic glossitis
• depression
• confusion
• angular cheilitis
• convulsions
• conjunctivitis
• neuropathy

RDA (Recommended Daily Allowance) for vitamin B6:

• 1.3 mg per day for male
• 1.3 mg per day for female
• 1.8 mg per day for pregnant
• 2.0 mg per day for lactating

Vitamin B6 exists in in a wide set of foods: beans, fortified cereals, meat, poultry, fish, fruits and vegetables.

Food rich in Vitamin B6:

• Potato
• Banana
• Turkey
• Chicken

• Garbanzo beans
• Oatmeal
• Pork loin
• Cereal
• Spinach
• Hazelnuts
• Vegetable juice cocktail
• Soybeans
• Lima beans
• Avocado
• Salmon
• Tuna
• Peanut butter

Although vitamin B6 is a water-soluble vitamin very high doses (over 1000 mg per day) of pyridoxine can cause sensory neuropathy.

Sensory neuropathy symptoms are:

• pain and numbness of the extremities
• difficulty walking

Daily intake over 500 mg can cause sensory neuropathy.

Vitamin B6 is water-soluble vitamin exists in several chemical forms: pyridoxine (PN), pyridoxal (PL), and pyridoxamine (PM).

Vitamin B6 plays role in:

• nervous system function (serotonin, dopamine, GABA synthesis)
• red blood cell function
• niacin formation
• hormone function
• nucleic acid synthesis

Vitamin B6 was discovered in 1930s.