THE vitamin B6 is a nutrient fundamental for several functions of the organism, from metabolism until the immune system. Also known as pyridoxine, she is one of the main B vitamins and participates in reactions essential for the production of energy, neurotransmitters and red blood cells. In this article, you will understand What is vitamin B6 for?, how to identify signs of vitamin B6 deficiency, their food sources and when the supplementation may be indicated.
Summary
Explanatory video about the benefits of vitamin B6:
What is vitamin B6 and what is its role in the body?
THE vitamin B6 is a water-soluble vitamin, that is, it is not stored by the body and must be consumed daily. This vitamin is essential for the metabolism of proteins, carbohydrates and fats, and acts as coenzyme in various chemical reactions of the organism.
THE pyridoxine is also vital for the formation of neurotransmitters, like the serotonin, which regulates mood, and dopamine, related to pleasure and motivation. It is also important for the production of hemoglobin, present in the red blood cells, and for the proper functioning of the nervous system and immunological.
What are the health benefits of vitamin B6?
THE vitamin B6 plays essential functions that positively impact various aspects of health. Among the benefits of vitamin B6, the following stand out:

- Help in hemoglobin production, preventing anemia;
- Participates in the metabolism of proteins and in the conversion of food into energy;
- It acts in the synthesis of neurotransmitters, as serotonin and dopamine;
- Contributes to the good functioning of the nervous system;
- Helps in immune system, promoting greater resistance against infections;
- It can reduce symptoms of premenstrual tension;
- Controls the levels of homocysteine, reducing the risk of heart disease.
What foods are rich in vitamin B6?
THE vitamin B6 is present in various everyday foods. The foods rich in vitamin B6 include:
- Lean meats such as chicken, turkey and beef;
- Fish like tuna and salmon;
- Whole grains: brown rice, oats, rye;
- Legumes: lentils, beans and chickpeas;
- Fruits such as banana, avocado and melon;
- Nuts and seeds, such as peanuts and sunflower seeds;
- Leafy vegetables like spinach and kale.
A balanced diet rich in these foods usually guarantees vitamin intake in adequate quantities.
What is the recommended daily intake of vitamin B6?
THE recommended daily rate of vitamin B6 varies according to age, sex and specific conditions such as pregnancy. On average:
- Adults: 1.3 to 2 mg per day
- Pregnant women: around 1.9 mg per day
- Lactating women: 2.0 mg per day
These needs may increase in cases of use of anticonvulsants, chronic alcoholism or kidney diseases.
What are the symptoms of vitamin B6 deficiency?
THE vitamin B6 deficiency can cause a variety of symptoms, some subtle and others more obvious. Among the symptoms of vitamin B6 deficiency, they are:

- Fatigue constant and lack of energy
- Irritability and mood swings
- Skin problems, such as dermatitis and chapped lips
- Tingling in the hands and feet
- Mental confusion and difficulty concentrating
- Low immunity and increased susceptibility to infections
In severe cases, there may be anemia and neurological dysfunctions. If you has a deficiency of this vitamin, it is important to seek support from a doctor or nutritionist.
What can cause a lack of vitamin B6?
THE lack of vitamin B6 can be caused by various factors, such as:
- Very restrictive or unbalanced diets
- Chronic alcoholism, which impairs the absorption of the nutrient
- Prolonged use of medications such as anticonvulsants or isoniazid
- Intestinal absorption problems
Some risk groups include pregnant women, the elderly, patients with kidney disease and those with liver disease.
👉 If you are interested in the benefits of vitamin B6, it is worth checking out our complete guide to essential vitamins and supplementsThere you will understand how each nutrient acts on the body and how to create a balanced routine that is safe and healthy.
When is vitamin B6 supplementation indicated?
THE vitamin B6 supplementation is indicated when the diet is not sufficient to guarantee ideal levels of the nutrient. Cases in which the use of supplements of vitamin B6 include:
- People with diagnosed disability by blood test
- Pregnant and lactating women with increased nutrient needs
- Patients with chronic diseases or using medications that interfere with absorption
However, use should be done under the guidance of a nutritionist, nutritionist or general practitioner, avoiding high doses which may cause side effects.
What are the risks of excess vitamin B6?
Although rare, the vitamin B6 poisoning can occur with excessive use of supplement without professional supervision. The adverse effects may include:

- Numbness and tingling in the limbs
- Loss of motor coordination
- Nerve injuries
Therefore, the vitamin intake You should always respect the recommended dose.
Vitamin B6 in the prevention of anemia and neurological disorders
THE vitamin B6 helps in the formation of red blood cells and in iron metabolism, being essential to prevent anemia. It also acts in the synthesis of neurotransmitters important for the nervous system, like the serotonin and the GABA.
Prolonged disability may be related to neurological symptoms such as mild depression, irritability and cognitive difficulties, especially in the elderly.
When should I see a doctor to assess vitamin B6?
Look for a general practitioner or nutritionist if you have symptoms of vitamin B6 deficiency or if you are in a risk group. The vitamin B6 test is done by means of blood test and in some cases it can be associated with a blood count full.
THE vitamin B6 supplementation should always be based on clinical evaluation and laboratory.
Conclusion: Why Vitamin B6 is Essential
THE vitamin B6 is a micronutrient vital for the good functioning of the body, directly influencing the metabolism, the nervous system, the blood health and the Immunity. The vitamin B6 deficiency can compromising several bodily functions and increasing the risk of anemia and neurological disorders.
Ensure adequate consumption, through diet or supplementation when indicated, is essential to keep the body in balance. Talk to a health professional and get regular checkups if you suspect lack of vitamin B6.
Key Points to Remember
- THE vitamin B6 is essential for metabolism and neurological function
- It is located in lean meats, fish, fruits, grains and vegetables
- Your deficiency can cause fatigue, anemia and mental confusion
- THE supplementation It is indicated in specific cases, with professional evaluation
- THE excess vitamin B6 may cause adverse effects and should be avoided
FAQ – Frequently asked questions about vitamin B6
What are the main benefits of vitamin B6?
It helps in the production of hemoglobin, regulates mood, improves immunity and acts on brain function.
Where to find vitamin B6?
In lean meats, fish, whole grains, fruits, nuts, seeds and leafy vegetables.
What are the symptoms of vitamin B6 deficiency?
Fatigue, irritability, skin problems, mental confusion, low immunity and anemia.
Who needs to supplement vitamin B6?
Pregnant women, the elderly, alcoholics and people with chronic illnesses or taking medications that interfere with absorption.
Is too much vitamin B6 bad for you?
Yes. It can cause neurological problems and symptoms such as tingling and loss of coordination.
What test is used to detect vitamin B6 deficiency?
THE blood test is the most suitable, often together with a blood count.
Does vitamin B6 help with PMS?
Yes. It can help relieve PMS symptoms such as irritability and bloating.