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Vitamin B Complex: Difference between revisions

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{| class="wikitable"
{| class="wikitable"
!Vitamin
!Vitamin and Name
!Name
!Key Functions
!Key Functions
!Recommended Daily Allowance (RDA) or Adequate Intake (AI)
!Toxicity/Upper Intake Level (UL)
|-
|-
|B1
|[[Vitamin B1 (Thiamine)|Vitamin B<sub>1</sub> (Thiamine)]]
|Thiamine
|Essential for carbohydrate metabolism, nerve function, and energy production. Plays a critical role in nerve transmission and is important for maintaining muscle function.
|Carbohydrate metabolism, nerve function
|1.2 mg for men; 1.1 mg for women
|Not established; no toxicity reported at high doses
|-
|-
|B2
|[[Vitamin B2 (Riboflavin)|Vitamin B<sub>2</sub> (Riboflavin)]]
|Riboflavin
|Involved in energy production, skin and eye health, and the metabolism of fats, drugs, and steroids. It helps maintain healthy blood cells and boosts energy levels.
|Energy production, skin and eye health
|1.3 mg for men; 1.1 mg for women
|Not established; no toxicity reported at high doses
|-
|-
|B3
|[[Vitamin B3 (Niacin)|Vitamin B<sub>3</sub> (Niacin)]]
|Niacin
|Critical for DNA repair, cholesterol and fatty acid metabolism, and maintaining skin health. Also plays a role in reducing [[Oxidative Stress|oxidative stress]] and inflammation.
|DNA repair, cholesterol metabolism, skin health
|16 mg for men; 14 mg for women
|35 mg/day to prevent flushing; higher doses can cause liver damage
|-
|-
|B5
|[[Vitamin B5 (Pantothenic Acid)|Vitamin B<sub>5</sub> (Pantothenic Acid)]]
|Pantothenic Acid
|Vital for the production of coenzyme A, essential in fatty acid synthesis. It's important for synthesizing and metabolizing proteins, carbohydrates, and fats.
|Coenzyme A production, fatty acid synthesis
|5 mg for adults
|Not established; diarrhea with very high doses
|-
|-
|B6
|[[Vitamin B6 (Pyridoxine)|Vitamin B<sub>6</sub> (Pyridoxine)]]
|Pyridoxine
|Important for amino acid metabolism, neurotransmitter synthesis, and hemoglobin production. Also plays a role in cognitive development and immune function.
|Amino acid metabolism, neurotransmitter synthesis
|1.3-1.7 mg for adults
|100 mg/day; higher doses can cause neurological disorders
|-
|-
|B7
|[[Vitamin B7 (Biotin)|Vitamin B<sub>7</sub> (Biotin)]]
|Biotin
|Key for fatty acid synthesis, amino acid metabolism, and gene regulation. Essential for metabolic processes involving fats and amino acids and the production of glucose.
|Fatty acid synthesis, amino acid metabolism, gene regulation
|30 µg for adults
|Not established; no toxicity reported at high doses
|-
|-
|B9
|[[Vitamin B9 (Folate)|Vitamin B<sub>9</sub> (Folate)]]
|Folate
|Crucial for DNA synthesis, cell division, and red blood cell formation. Supports maternal and fetal health during pregnancy and plays a role in preventing neural tube defects.
|DNA synthesis, cell division, red blood cell formation
|400 µg for adults
|1000 µg/day; higher doses can mask B12 deficiency
|-
|-
|B12
|[[Vitamin B12 (Cobalamin)|Vitamin B<sub>12</sub> (Cobalamin)]]
|Cobalamin
|Essential for nerve function, DNA synthesis, and red blood cell formation. Important for brain health, energy production, and creating important nerve sheathing.
|Nerve function, DNA synthesis, red blood cell formation
|2.4 µg for adults
|Not established; no toxicity reported at high doses
|}
|}


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