B vitamins have important biological roles; They are water-soluble vitamins and cannot be stored in the body. The body uses B vitamins as much as it needs and the excess is excreted from the body. Therefore, B vitamins should be taken regularly on a daily basis. Since the symptoms due to vitamin deficiency vary according to the type of vitamin, it is very important to have information about the subject in terms of early diagnosis and intervention.

B vitamins are effective on cognitive functions. cognitive functions; are various brain functions that include memory, learning, spatial orientation, reasoning, judgment, and evaluation. Due to the lack of B vitamins, problems such as extreme weakness and forgetfulness can be seen. The decline of these functions is a progressive condition that starts as mild cognitive impairment and progresses to dementia.

B vitamins are a group of vitamins that are associated with energy metabolism as well as cognitive function. However, contrary to what is known, vitamin B does not provide energy directly to the body, and vitamin B deficiency can negatively affect the associated energy metabolism and cause fatigue and low energy in the body. B vitamins provide the absorption of fat, protein and carbohydrates, which the body uses as energy sources. In addition, it plays important roles in metabolism such as new cell production, amino acid breakdown and oxygen transport.

Vitamin deficiency can occur due to several main reasons. These reasons; Malnutrition is the inability of the body to absorb adequate amounts or any disease that causes a deficiency in the body. At the same time, alcohol addiction drastically reduces the absorption of B vitamins.

The main task of Vitamin B1 (Thiamine); to reveal the energy needed by the cells and to help various functions of the nervous system. Although its deficiency is rare in developed countries; deficiency, beriberi disease, excessive weight loss, confusion, fatigue can be seen.

The main task of Vitamin B2 (Riboflavin); It helps the digestion of carbohydrates, proteins and fats taken into the body. Since many enzymes in the body play a role in the working mechanism, vitamin B2 deficiency can lead to various diseases.

The main task of Vitamin B3 (Niacin); to participate in energy metabolism, to participate in enzyme and hormone structure, to participate in DNA production, nervous system and nervous system. Its deficiency can result in a disease called pellagra. Skin problems, feeling tired, depression and memory loss may also occur.

The main task of Vitamin B5 (Pantothenic Acid); In addition to its functions such as protein production and being a coenzyme, it plays a role in energy metabolism. Vitamin B5 deficiency usually shows symptoms in the form of hand-foot numbness, headache and loss of appetite.

The main task of Vitamin B6 (Pyridoxine); to take part in various enzyme reactions. It is especially important in terms of brain development, immune system activities and processes of obtaining energy from foods such as other types of B vitamins. In its deficiency, the symptoms may be mild or may manifest as depression, anemia, and low immune system.

The main task of Vitamin B7 (Biotin and/or Biotin); It is especially necessary for the synthesis of fat and glycogen in the body. It also plays a role in energy metabolism. Common symptoms of biotin deficiency include hair loss and an unhealthy appearance of nails and skin.

The main task of Vitamin B9 (Folic Acid, Folate); It is involved in the metabolic processes of DNA and RNA protein structures. It is important that folic acid intake is sufficient, especially in preparation for pregnancy and during pregnancy. Anomalies are seen in the babies of women with folic acid deficiency.

The main task of Vitamin B12 (Cobalamin); It works together with folic acid in the production of red blood cells, synthesis of DNA and myelin. It takes part in the reabsorption of vitamin B12. It is effective in the functions of minerals such as zinc and magnesium. Vitamin B12 is found in foods of animal origin. Its deficiency causes megaloblastic anemia.