B vitamins B: Interaction with other vitamins
Chapter 1: Review of group B vitamins and their main functions
B vitamins, often called the B-complex, are a group of eight water-soluble vitamins that play a decisive role in cellular metabolism. Each vitamin B performs unique functions, but they are closely connected and often work synergistic to maintain optimal health. The disadvantage of one B vitamin B can affect the function of others, emphasizing the importance of obtaining a sufficient amount of all eight.
1.1 Tiamin (B1): Energy metabolism and function of the nervous system
Tiamin, also known as vitamin B1, is a key cofactor in several enzymatic reactions necessary for the metabolism of carbohydrates, fats and proteins. It is especially important for converting carbohydrates into energy that the body uses. Tiamin is involved in the decarboxylation of alpha-coat acids, the critical stage of the Crebs cycle (citric acid cycle), which is the central way of energy production in the cells.
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Main functions:
- Metabolism of carbohydrates, fats and proteins.
- The function of the nervous system: helps to maintain a healthy function of nerve cells and the transmission of nerve impulses.
- Energy production: plays a key role in the process of converting food into energy.
- Cardiac function: necessary for the normal functioning of the heart muscle.
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Deficiency:
- BEY-BERI: characterized by neurological and cardiovascular symptoms.
- Vernika-Korsakov Syndrome: often observed in people who abuse alcohol, and is characterized by confusion, problems with coordination and memory problems.
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Sources of food:
- Whole grain products
- Legumes
- Nuts and seeds
- Pork
- Enriched products (for example, bread, cereals)
1.2 Riboflavin (B2): antioxidant protection and cellular growth
Riboflavin, or vitamin B2, is necessary for the functioning of flavoproteins that participate in a wide range of metabolic processes, including energy metabolism, metabolism of fats, drugs and steroids. It plays an important role in antioxidant protection, helping to protect the cells from damage caused by free radicals. Riboflavin is also necessary for normal growth and development, as well as to maintain healthy skin, eyes and mucous membranes.
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Main functions:
- Energy metabolism: participates in the redox reactions necessary for the production of energy.
- Antioxidant protection: helps to protect the cells from damage caused by free radicals.
- Metabolism of other vitamins: necessary for activating vitamins B6 and folic acid.
- Health of the skin, eyes and mucous membranes: helps maintain tissue health.
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Deficiency:
- Ariboflavinosis: characterized by cracks in the corners of the mouth (angular stomatitis), inflammation of the tongue (glossitis), dermatitis and photosensitivity.
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Sources of food:
- Dairy products
- Eggs
- Meat
- Green sheet vegetables (for example, spinach, broccoli)
- Enriched products
1.3 Niacyn (B3): Synthesis of Energy and DNA
Niacin, or vitamin B3, exists in two forms: nicotinic acid and nicotinamide. Both forms are the predecessors of the coherents of nicotinydenindinindinucleotide (NAD) and nicotinindinindinindinucleotidfosphate (NADP), which participate in more than 400 enzymatic reactions. These coofers play a decisive role in energy metabolism, DNA synthesis, DNA reparation and the transmission of cell signals. Niacin can also help reduce LDL cholesterol (bad) and increase the level of HDL cholesterol (good).
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Main functions:
- Energy metabolism: necessary for the production of energy from carbohydrates, fats and proteins.
- DNA synthesis: participates in replication and DNA repair.
- Transfer of cell signals: plays a role in communication between cells.
- Reduced cholesterol: can help reduce LDL cholesterol and increase the level of HDL cholesterol.
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Deficiency:
- Pellagra: “3 D” is characterized by: dermatitis, diarrhea and dementia.
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Sources of food:
- Meat
- Bird
- Fish
- Nuts
- Seeds
- Enriched products
1.4 pantothenic acid (B5): metabolism of fats and hormones
Pantotenic acid, or vitamin B5, is a component of coherent A (COA), which plays a central role in the metabolism of carbohydrates, fats and proteins. COA is necessary for the synthesis and splitting of fatty acids, as well as for the synthesis of cholesterol, steroid hormones and neurotransmitters. Pantotenic acid is also involved in the detoxification of certain drugs and chemicals.
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Main functions:
- Fat metabolism: necessary for the synthesis and splitting of fatty acids.
- Metabolism of carbohydrates and proteins: participates in the production of energy from these macroelements.
- Hormones synthesis: necessary for the production of steroid hormones.
- Cholesterol synthesis: participates in the production of cholesterol.
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Deficiency:
- Pantothenic acid deficiency is rare, since this vitamin is widespread in food products. Symptoms may include fatigue, headache, insomnia and numbness of the arms and legs.
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Sources of food:
- Meat
- Bird
- Fish
- Eggs
- Avocado
- Mushrooms
- Broccoli
1.5 pyridoxin (b6): amino acid metabolism and brain function
Pyridoxine, or vitamin B6, is a group of six chemically connected compounds (pyridoxine, pyridoxal, pyridoxamine and their phosphorized derivatives). It is involved in more than 100 enzymatic reactions, mainly associated with amino acid metabolism. Vitamin B6 is necessary for the synthesis of neurotransmitters, such as serotonin, dopamine and norepinephrine, which play a decisive role in the regulation of mood, sleep and cognitive functions. It also participates in the synthesis of hem, a component of hemoglobin, which tolerates oxygen in the blood.
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Main functions:
- Amino acid metabolism: participates in the breakdown and synthesis of amino acids.
- Neurotransmitter synthesis: necessary for the production of serotonin, dopamine and norepinephrine.
- Gem synthesis: participates in the production of hemoglobin.
- Immune function: plays a role in maintaining a healthy immune system.
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Deficiency:
- Symptoms can include anemia, dermatitis, convulsions, depression and confusion.
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Sources of food:
- Meat
- Bird
- Fish
- Banans
- Potato
- Enriched products
1.6 BIOTIN (B7): metabolism of fats, carbohydrates and proteins
Biotin, or vitamin B7, is a cooferment for several carboxylase, enzymes that are involved in the metabolism of fatty acids, carbohydrates and proteins. It is necessary for gluconeogenesis (synthesis of glucose from non-carbon sources), the synthesis of fatty acids and leucine catabolism. Biotin can also play a role in regulating genes expression.
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Main functions:
- Metabolism of fats, carbohydrates and proteins: participates in enzymatic reactions necessary for the splitting and synthesis of these macroelements.
- Gloundogenesis: necessary for the synthesis of glucose from non-carb sources.
- Gene expression regulation: can affect the activity of certain genes.
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Deficiency:
- Biotin’s deficiency is rare, but can occur in people who use a large amount of raw egg proteins (which contain avidine, protein binding with biotin) or having certain genetic disorders. Symptoms can include dermatitis, hair loss, fragility of nails and neurological symptoms.
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Sources of food:
- Eggs
- Liver
- Nuts
- Seeds
- Salmon
- Avocado
1.7 folic acid (B9): DNA synthesis and cell growth
Folic acid, or vitamin B9, is a water -soluble vitamin necessary for DNA synthesis, DNA reparation and DNA methylation. It is especially important for rapidly dividing cells, such as blood cells and fetal cells during pregnancy. Adequate consumption of folic acid during pregnancy helps to prevent defects in the nervous tube, such as the crevice of the spine. Folic acid also plays a role in the metabolism of homocysteine, amino acids, the high level of which is associated with an increased risk of cardiovascular diseases.
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Main functions:
- DNA synthesis: necessary for replication and DNA repair.
- Cell growth: contributes to the normal growth and development of cells.
- Prevention of nervous tube defects: adequate consumption during pregnancy helps to prevent defects in the nervous tube.
- Homocysteine metabolism: helps to reduce homocysteine levels.
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Deficiency:
- Megaloblastic anemia: characterized by large, immature red blood cells.
- Nervous tube defects: defects of the nervous tube in the fetus during pregnancy.
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Sources of food:
- Green sheet vegetables (for example, spinach, broccoli)
- Legumes
- Citrus fruit
- Enriched products
1.8 cobalamin (B12): the function of the nervous system and the formation of red blood cells
Cobalamine, or vitamin B12, is a water -soluble vitamin necessary for the normal function of the nervous system and the formation of red blood cells. It acts as a coherent for several enzymes, including methylmalonyl-cooa mutaz, which is involved in the metabolism of fatty acids and amino acids, and methioninsyntase, which is necessary to turn homocysteine into methionine. Vitamin B12 is also necessary to maintain the myelin shell that surrounds and protects the nerve fibers.
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Main functions:
- The function of the nervous system: is necessary for the normal function of nerve cells and maintaining the myelin shell.
- Erythrocyte formation: participates in the production of red blood cells.
- Homocysteine metabolism: helps to reduce homocysteine levels.
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Deficiency:
- Pernicious anemia: caused by a disadvantage of the internal factor necessary for the absorption of vitamin B12.
- Neurological symptoms: may include numbness, tingling, weakness and memory problems.
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Sources of food:
- Meat
- Bird
- Fish
- Eggs
- Dairy products
- Enriched products (for vegans and vegetarians)
Chapter 2: The interaction of group B vitamins
B vitamins work synergistically, which means that they interact and support each other’s functions. The deficiency of one vitamin B can disrupt the metabolism and functions of other vitamins B. The understanding of these interactions is important for optimizing the consumption of nutrients and maintaining overall health.
2.1 Riboflavin interaction (B2) with other B vitamins
Riboflavin plays a key role in activating vitamins B6 and folic acid. It is necessary for the transformation of pyridoxine (vitamin B6) into its active form, pyridoxal-5-phosphate (PLP). PLP is a cooferment for more than 100 enzymes involved in amino acid metabolism, neurotransmitter synthesis and hem synthesis.
Riboflavin is also necessary for converting folic acid into its active form, tetrahydrofolat (ThF). ThF is necessary for DNA synthesis, DNA reparations and DNA methylation. Riboflavin deficiency can disrupt the activation of vitamins B6 and folic acid, which will lead to a violation of their metabolic functions.
2.2 Niacin interaction (B3) with other vitamins of group B
Niacin is involved in energy metabolism and requires other B vitamins for optimal function. For example, riboflavin and thiamine are necessary for the synthesis of NAD and NADP, coofers obtained from niacin. In addition, vitamin B6 is involved in the transformation of a tripophan (amino acid) into niacin. The deficiency of any of these vitamins can affect the effectiveness of niacin in energy metabolism and other important processes.
2.3 Pyridoxine interaction (B6) with other B vitamins
Vitamin B6 plays a key role in the metabolism of amino acids, as well as in interaction with other vitamins of group B. As mentioned earlier, riboflavin is necessary for activating vitamin B6 in its active form, PLP. PLP is involved in the metabolism of the thriptophan into Niacin, which demonstrates the relationship between vitamins B6 and B3. In addition, vitamin B6 is involved in the metabolism of homocysteine, a process that also requires folic acid and vitamin B12. The deficiency of any of these vitamins can lead to an increased level of homocysteine, which is associated with an increased risk of cardiovascular disease.
2.4 Interaction of folic acid (B9) and cobalamine (B12)
Folic acid and vitamin B12 are closely connected and are involved in the metabolism of homocysteine. Vitamin B12 is necessary for the activity of methioninSintase, an enzyme that turns homocysteine into methionine, and folic acid is necessary for the formation of methylhetetrahydrofolates (5-methyl-TGF), a coherent that is used in this reaction. The deficiency of either folic acid or vitamin B12 can disrupt this process, which will lead to an increased level of homocysteine.
Moreover, the deficiency of vitamin B12 can “catch” folic acid in the form of 5-methyl-TGF, which complicates its use for other metabolic processes. This phenomenon is known as a “methyl trap.” As a result, vitamin B12 deficiency can mask the deficiency of folic acid, and vice versa. It is important to adequately consume both vitamins, especially in older people who are more susceptible to vitamin B12 deficiency.
Chapter 3: The interaction of group B vitamins with vitamins that are not part of group B
The interaction of B vitamins is not limited only inside the group. They also interact with other vitamins that are not part of group B, affecting their absorption, metabolism and functions.
3.1 vitamin B6 and vitamin C
Vitamin B6 and vitamin C have some common metabolic pathways. Vitamin C can contribute to the activation of vitamin B6, enhancing its transformation into an active form, PLP. In addition, both vitamins have antioxidant properties and can work synergistically to protect the cells from damage caused by free radicals.
3.2 B vitamins B and vitamin D
Although direct interactions between group B vitamins and vitamin D are a few, they both play an important role in general health and well -being. Vitamin D is necessary for the health of bones, immune function and mood regulation, while group B vitamins are involved in energy metabolism, the function of the nervous system and the synthesis of DNA. Adequate consumption of both vitamin D and group B vitamins are important for maintaining optimal health. Some studies show that vitamin D deficiency can affect the function of certain B vitamins, and vice versa. Further research is needed for further study of these interactions.
3.3 B vitamins B and vitamin A
Vitamin A is necessary for vision, immune function and cell growth. Some vitamins of group B, such as riboflavin and niacin, are involved in the metabolism of vitamin A. Niacin is involved in the synthesis of retinoic acid, a different active form of vitamin A, which plays a role in the regulation of genes expression.
3.4 B vitamins B and vitamin E
Vitamin E is a powerful antioxidant that protects the cells from damage caused by free radicals. Although direct interactions between group B vitamins and vitamin E have not been fully studied, both vitamins are important for maintaining overall health. B vitamins play a role in energy metabolism and cell function, and vitamin E helps protect cells from oxidative stress.
Chapter 4: Factors affecting the absorption and assimilation of group B vitamins
Different factors, including dietary factors, health status and medicine, can affect the absorption and absorption of B vitamins.
4.1 Dietary factors
A diet rich in whole, unprocessed products usually provides a sufficient amount of B vitamins B. However, certain dietary factors can affect the absorption of vitamins of group B.
- Alcohol: Alcohol abuse can disrupt the absorption and absorption of several vitamins of group B, especially thiamine, folic acid and vitamin B6. Alcohol can damage the mucous membrane of the gastrointestinal tract, reducing the absorption of these vitamins. In addition, alcohol can affect the metabolism of group B vitamins in the liver.
- Caffeine: High consumption of caffeine can increase the excretion of certain vitamins of group B, such as thiamine and niacin. However, the effect of caffeine on the status of group B vitamins is usually minimal if the consumption of nutrients is adequate.
- Sahar: Processed foods of sugar can lead to increased need for group B vitamins, especially thiamine, due to their role in carbohydrate metabolism.
4.2 health status
Certain states of health can violate the absorption and absorption of vitamins of group B.
- Diseases of the gastrointestinal tract: States such as Crohn’s disease, celiac disease and ulcerative colitis can damage the mucous membrane of the small intestine, reducing the absorption of vitamins of group B.
- Personic anemia: This autoimmune state is characterized by the absence of an internal factor, a protein necessary for the absorption of vitamin B12 in the small intestine.
- Atrophic gastritis: This condition is characterized by inflammation and thinning of the mucous membrane of the stomach, which can reduce the production of hydrochloric acid and internal factor, violating the absorption of vitamin B12.
- Renal failure: Renal failure can affect the metabolism and excretion of group B vitamins, leading to deficiency.
4.3 Drugs
Certain drugs can interact with group B vitamins, affecting their absorption, metabolism and excretion.
- Metformin: This drug, usually used to treat type 2 diabetes, can disrupt the absorption of vitamin B12.
- Proton pump inhibitors (IPP): These drugs used to reduce the production of gastric acid can reduce the absorption of vitamin B12, violating the release of vitamin B12 from food.
- Antibiotics: Long -term use of antibiotics can disrupt intestinal microflora, which can affect the production and absorption of certain vitamins of group B, such as biotin and vitamin K.
- Broadcasting tablets: Some studies show that contraceptive tablets can reduce the level of some vitamins of group B, such as vitamin B6, folic acid and vitamin B12.
Chapter 5: The role of group B vitamins in various health conditions
B vitamins play a vital role in maintaining overall health, and they are often used as additional means of treating various health conditions.
5.1 cardiovascular diseases
B vitamins, especially folic acid, vitamin B12 and vitamin B6, play a role in reducing the level of homocysteine, amino acids, the high level of which is associated with an increased risk of cardiovascular diseases. Additions with these vitamins can help reduce homocysteine levels and potentially reduce the risk of cardiovascular diseases, although additional studies are needed to confirm these effects.
5.2 Neurological disorders
B vitamins are necessary for the function of the nervous system, and their deficiency can lead to various neurological disorders.
- Depression: Some studies show that the low level of certain vitamins of group B, such as folic acid, vitamin B12 and vitamin B6, may be associated with an increased risk of depression. Additions with these vitamins can help improve the symptoms of depression, especially in people with deficiency.
- Cognitive disorders: B vitamins, especially vitamin B12 and folic acid, are important for cognitive function and memory. The deficiency of these vitamins can contribute to cognitive impairment and dementia, especially in the elderly.
- Peripheralic neuropathy: Vitamin B12 deficiency can cause peripheral neuropathy, a condition characterized by damage to the nerves, which can cause numbness, tingling and pain in the arms and legs.
5.3 Pregnancy
Folic acid is crucial for women of childbearing age and is especially important during pregnancy. Adequate consumption of folic acid helps to prevent defects in the nervous tube, such as the crevice of the spine, in the developing fetus. Pregnant women are recommended to take 400 μg of folic acid per day, starting at least one month before conception and continuing during the first trimester of pregnancy.
5.4 Energy and fatigue
B vitamins play a key role in energy metabolism, converting food into energy that the body can use. B vitamins deficiency can lead to fatigue, weakness and a decrease in energy level. Addresses with B vitamins can help improve the level of energy, especially in people with deficiency or in those who experience increased stress.
Chapter 6: Recommendations on consumption of group B vitamins and security
Recommendations for the consumption of B vitamins vary depending on age, gender and physiological condition.
6.1 Recommended daily standards (RSN)
RSN for B vitamins are established by the Institute of Medicine (IOM) and are based on the amount of vitamin, necessary to meet the needs of most healthy people. RSN for B vitamins are given below:
- TIAMIN (B1):
- Men: 1.2 mg/day
- Women: 1.1 mg/day
- Riboflavin (b2):
- Men: 1.3 mg/day
- Women: 1.1 mg/day
- Niacin (B3):
- Men: 16 mg ne/day (mg niacin equivalent)
- Women: 14 mg ne/day
- Pantotenic acid (B5):
- Adults: 5 mg/day (sufficient consumption)
- Pyridoxin (B6):
- Adults (19-50 years old): 1.3 mg/day
- Adults (51+ years):
- Men: 1.7 mg/day
- Women: 1.5 mg/day
- Biotin (B7):
- Adults: 30 μg/day (sufficient consumption)
- Folic acid (B9):
- Adults: 400 μg of DFE/day (mcg of diet folate equivalent)
- Pregnant women: 600 mcg dfe/day
- Nursing women: 500 μg DFE/day
- Kobalamin (B12):
- Adults: 2.4 mcg/day
6.2 upper permissible levels of consumption (vdup)
The clock is the highest daily intake of the nutrient, which is probably not the risk of adverse health consequences for almost all people in the general population. The clock does not exist for all B vitamins, but they are installed for niacin (35 mg/day for nicotinic acid from additives and enriched products) and vitamin B6 (100 mg/day).
Exceeding the clock can increase the risk of side effects. It is important not to exceed the clock if this is not recommended by a medical worker.
6.3 Safety and side effects
B vitamins are usually safe when consumed in recommended doses. Since they are waterproof, excess of vitamins is usually excreted in the urine. However, high doses of certain B vitamins can cause side effects.
- Niacin: High doses of nicotinic acid (more than 35 mg/day) can cause redness, itching, nausea and liver damage.
- Vitamin B6: Long -term intake of high doses of vitamin B6 (more than 100 mg/day) can lead to damage to nerves (peripheral neuropathy).
Before taking additives with group B vitamins, it is important to talk with your doctor, especially if you have any diseases or you take medicines.
Chapter 7: Final considerations
B vitamins are a group of indispensable nutrients that play a decisive role in cellular metabolism, functions of the nervous system and the general state of health. They interact with each other, as well as with other vitamins, and their absorption and assimilation can depend on various factors, such as dietary factors, health status and medicine. Enough consumption of group B vitamins through a balanced diet or additives can help maintain optimal health and prevent deficiency. It is important to consult your doctor in order to determine the appropriate doses and take into account potential interactions with medicines or other health conditions. Understanding the role and interaction of group B vitamins is important for maintaining general health and well -being.
This comprehensive article provides a detailed overview of B vitamins and their interactions with other vitamins. It covers the following aspects:
- Detailed Description of Each B Vitamin: Each B vitamin (B1, B2, B3, B5, B6, B7, B9, B12) is discussed in detail, including its main functions, deficiency symptoms, and food sources.
- Interactions within the B-Complex: Explores the synergistic relationships between the B vitamins, highlighting how they influence each other’s metabolism and function.
- Interactions with Non-B Vitamins: Describes the interactions between B vitamins and other vitamins like vitamin C, vitamin D, vitamin A, and vitamin E.
- Factors Affecting Absorption and Utilization: Explains the factors that can impact the absorption and utilization of B vitamins, including dietary factors, health conditions, and medications.
- Role in Various Health Conditions: Discusses the potential benefits of B vitamins in managing conditions like cardiovascular diseases, neurological disorders, and during pregnancy.
- Consumption Recommendations and Safety: Provides guidelines for recommended daily intakes (RDIs) and upper tolerable intake levels (ULs) for B vitamins, along with safety considerations and potential side effects.
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