Vitamin B6 - influence on metabolism, nervous system and mood

Vitamin B6, also known as pyridoxine, is an essential nutrient that plays a vital role in many biological processes. It takes part in metabolic processes, supports the functioning of the nervous system and affects mood and general well-being. Deficiencies of this vitamin can lead to various health problems, so it is worth paying attention to its adequate supply in the diet. In this article, we will take a closer look at the properties and importance of vitamin B6 for our health.

Vitamin B6 - characteristics and impact on health

Vitamin B6, also known as pyridoxine, is a water-soluble vitamin that plays an important role in many metabolic and physiological processes. This vitamin includes several chemical compounds: pyridoxal, pyridoxamine and their phosphates. Its action is versatile and affects the functioning of the nervous system, the production of red blood cells, protein synthesis, as well as the metabolism of amino acids and neurotransmitters.

Main functions of vitamin B6:

• Metabolism - It takes part in the metabolism of amino acids and glycogen, influencing energy metabolism in the body.
• Nervous system - Vitamin B6 is necessary for the synthesis of neurotransmitters such as serotonin, dopamine and gamma-aminobutyric acid (GABA), which are important for the proper functioning of the brain.
• The circulatory system - Supports the production of hemoglobin and the redistribution of iron in the body.
• Protein synthesis- Enables proper protein synthesis, influencing the growth and regeneration of tissues.

Vitamin B6 deficiency can lead to serious health disorders, so it is important to maintain its appropriate level in the diet.

Vitamin B6 deficiency - symptoms

Vitamin B6 deficiency may manifest itself in a variety of symptoms, which are often non-specific and may be difficult to diagnose. The most common symptoms include:

• Neurological symptoms: Dizziness, muscle tremors, balance disorders, peripheral neuropathy.
• Psychiatric symptoms: Depression, irritability, anxiety, sleep disorders.
• Dermatological symptoms: Dermatitis, seborrheic dermatitis, cracking of the corners of the mouth, geographical tongue.
• Hematological symptoms: Microcytic anemia, decreased number of red blood cells.
• Immunological symptoms: Weakened immunity, susceptibility to infections.

Vitamin B6 deficiency is often associated with malnutrition, chronic diseases such as diabetes or kidney disease, as well as with malabsorption in the gastrointestinal tract.

Excess vitamin B6 - symptoms

Although vitamin B6 is water-soluble and excess is usually excreted in the urine, overdose can lead to toxic symptoms, especially with long-term use of high doses of supplements. Symptoms of excess vitamin B6 include:

• Peripheral neuropathy: Paresthesia, tingling sensation, numbness in hands and feet.
• Dermatological problems: Skin rashes, excessive skin sensitivity to light.
• Gastrointestinal disorders: Nausea, abdominal pain.
• Muscle weakness: Muscle cramps, decreased muscle strength.

These symptoms may occur with long-term consumption of vitamin B6 in doses exceeding 200 mg per day.

What is the safe dose of vitamin B6?

A safe dose of vitamin B6 depends on many factors, including age, gender, health status and the body's specific needs. The recommended daily allowance (RDA) of vitamin B6 is:

• Adult women: 1.3-1.5 mg per day
• Grown men: 1.3-1.7 mg per day
• Pregnant women: 1.9 mg daily
• Breastfeeding women: 2.0 mg daily

The maximum tolerated dose (UL - Upper Limit) is 100 mg daily for adults. The use of higher doses is recommended only under medical supervision and in specific clinical conditions requiring supplementation <4>.

Where can you find vitamin B6?

Vitamin B6 is widespread in food, both plant and animal origin. The richest sources of this vitamin include:

1. Poultry and fish: Chicken, turkey, salmon, tuna.
2. Red meat: Beef, pork.
3. Cereal products: Whole grain bread, oatmeal.
4. Vegetables: Potatoes, carrots, peas, spinach.
5. Fruit: Bananas, avocado, grapes.
6. Nuts and seeds: Hazelnuts, sunflower, sesame.

An example list of vitamin B6 sources:

• 100 g of salmon contains about 0.8 mg of vitamin B6.
• 100 g chicken breast is about 0.5 mg of vitamin B6.
• 100 g avocado provides about 0.3 mg of vitamin B6.

Regular consumption of various food products from the above list will help maintain an appropriate level of vitamin B6 in the body.

The use of vitamin B6 in therapy and supplementation

Vitamin B6 is also used in the therapy of various diseases and supplementation. It should be emphasized that supplementation should take place under the supervision of a doctor and based on the patient's individual needs. Vitamin B6 has been used in the treatment of such states as:

Premenstrual syndrome (PMS)

Vitamin B6 can alleviate PMS symptoms, such as irritability and mood changes.

Silesian anemia

Vitamin B6 supplementation can be beneficial in reducing the symptoms of this blood disease.

Nausea and vomiting in pregnancy (pregnancy nausea)

Vitamin B6 is often used as a safe anti -emerse in the first trimester of pregnancy.

Sleep disturbance

Due to the role in the synthesis of neurotransmitters, vitamin B6 can support a healthy sleep.

Inflammation and joint pain

Thanks to anti -inflammatory effects, vitamin B6 can help to alleviate the symptoms of arthritis.

Summary

Vitamin B6 is an extremely important nutrient that plays an important role in the functioning of the nervous and metabolic systems and other physiological processes. Maintaining the right level of this vitamin in the diet is necessary to maintain health and well -being. In the case of symptoms of deficiency or excess vitamin B6, it is necessary to consult a doctor and a proper modification of diet or supplementation. Thanks to the wide spread of vitamin B6 in food, it is possible to balance the diet in such a way as to avoid both deficiency and excess vitamin.

Footnotes

C. F. Reynolds, "Vitamin B6 Metabolism and Its Role in Health." Journal of Nutritional Biochemistry, 2020. G. P. Kurowska, "Clinical Aspects of Vitamin B6 Deficiency," American Journal of Clinical Nutrition, 2019. J. E. Malinow, "The Toxicity and Safety of Vitamin B6," Toxicology Reviews, 2021. M. L. Tuck, "Dietary Recommendations for Vitamin B6," Nutrition Reviews, 2022. A. Bardowell, "Vitamin B6 in Treatment of PMS," Journal of Women's Health Medicine, 2018.