=================================================================================== << Page 1 Page 2 DRI / RDA for B-Vitamins =================================================================================== Dietary Reference Intake (DRI) is the latest term replacing daily dietary reference values such as: Adequate Intake (AI *), Nutrient Reference Value (NRV), Tolerable Upper Intake Level (UL), Estimated Average Requirements (EAR), and Recommended Dietary Allowance / Intake (RDA / RDI). Vitamin B1 - Thiamine: Vitamin B2 - Riboflavin: DRI (RDA): DRI (RDA): 0-6 months 0.3mg 0-6 months 0.4mg 6-12 months 0.5mg 6-12 months 0.6mg 1-18 years 1-1.5mg 1-18 years 1-1.5mg 18 years + 1.5mg 18 years + 1.7mg pregnant / lactating + 0.5mg pregnant / lactating + 0.5mg Therapeutic Range: 50mg - 1000mg+Therapeutic Range: 50mg - 500mg+ Low Levels / Deficiency - Symptoms and/or Risk Factors: Vitamin B1: Vitamin B2: Beriberi, gastrointestinal disorders, nausea, Light sensitivity, cracks / inflammation of lips, vomiting, fatigue, depression, low adrenals, tongue, corners of mouth, dizziness, insomnia, High levels / Overdose / Toxicity / Negative Side Effects - Symptoms and/or Risk Factors: Vitamin B1: Vitamin B2: Heart palpitation, insomnia, agitation, high blood Nausea, vomiting, fatigue, anemia, low blood pressure, skin eruptions, hypersensitivity, pressure, [yellow urine], ___________________________________________________________________________________ Vitamin B3/4 - Niacin / Niacinamide: Vitamin B5 - Pantothenic Acid: (also called Calcium Pantothenate) DRI (RDA): DRI (RDA): 0-6 months 6mg 0-6 months 2.5mg 6-12 months 8mg 6-12 months 3mg 1-18 years 10-15mg 1-18 years 4-7mg 18 years + 15-20mg 18 years + 10mg pregnant / lactating + 4mg pregnant / lactating + 3mg Therapeutic Range: 100mg - 2,000mg+Therapeutic Range: 250mg - 20g+ Low Levels / Deficiency - Symptoms and/or Risk Factors: Vitamin B3/4: Vitamin B5: Pellagra (dementia, death), nausea, vomiting, loss Insomnia, joint pains, gouty arthritis, edema, of appetite, fatigue, swollen red tongue, dermatitis, kidney stones, burning feet, High levels / Overdose / Toxicity / Negative Side Effects - Symptoms and/or Risk Factors: Vitamin B3/4: Vitamin B5: Flushing (Vit B3), nausea, vomiting, headaches, Edema, severe fatigue, joint pains, reduced high blood sugar, high uric acid, jaundice, sweating, protein metabolism, gastrointestinal symptoms, skin rash, raised stomach acid, insomnia, joint pains, raised VLDL triglycerides, calcification, calcium loss, increased choline requirements, dehydration, depression, ===================================================================================
=================================================================================== Vitamin B6 - Pyridoxine / P5P: Vitamin B7 - Biotin: DRI (RDA): DRI (RDA): 0-6 months 0.3mg 0-6 months 35mcg 6-12 months 0.6mg 6-12 months 50mcg 1-18 years 1-2mg 1-18 years 100-200mcg 18 years + 2-2.5mg 18 years + 300mcg pregnant / lactating + 0.6mg pregnant / lactating + 50mcg Therapeutic Range: * 50mg - 1,000mg+*Therapeutic Range: 50mcg - 15mg * When supplementing more than 50mg of Vitamin B6 / Pyridoxine per day, the tablets should contain a small percentage of the Vitamin as Pyridoxal-5-Phosphate (P5P). Low Levels / Deficiency - Symptoms and/or Risk Factors: Vitamin B6: Biotin: Numbness (pins and needles) in hands and/or feet, Skin disorders, hair loss, brittle nails, anemia, depression, mental disorders, seborrheic dermatitis, seborrheic dermatitis in infants, depression, PMS, dizziness, insomnia, irritability, kidney stones, fatigue, nausea, loss of appetite, muscular pains abnormal electroencephalogram (EEG), anemia, increased total cholesterol levels, hypoglycemia, convulsions, edema (water retention), hypothyroid, glossitis, migraine-headaches, glossitis, lymphopenia, High levels / Overdose / Toxicity / Negative Side Effects - Symptoms and/or Risk Factors: Vitamin B6: Biotin: Numbness in hands and/or feet (from high intake of Reduced / slowed insulin release, increased pyridoxine, not pyridoxal-5-phosphate), depression, Vitamin C requirements, increased Vitamin B6 suicidal tendencies, severe fatigue, low blood sugar, requirements, skin eruptions, increased blood mood swings, migraine-headaches, heart palpitations, sugar, hyperthyroid, hypothyroid (long-term supplementation), spinal / nerve degeneration (all forms of Vitamin B6), muscle spasms / cramps, osteoporosis, arthritis, higher blood pressure (short-term supplementation), lower blood pressure (long-term supplementation), abnormally high phosphorus-sodium ratio (low pH), abnormally high magnesium-calcium ratio, severe calcium deficiency, severe manganese deficiency, PMS, decreased estrogen, decreased prolactin, restlessness, increased dream activity, insomnia, ___________________________________________________________________________________ Vitamin B9 - Folic Acid / Folate: * Vitamin B12 - Hydroxy / Cyanocobalamin: (also available as adenosyl / methylcobalamin) DRI (RDA): DRI (RDA): 0-6 months 30mcg 0-6 months 0.5mcg 6-12 months 50mcg 6-12 months 1.5mcg 1-18 years 100-400mcg 1-18 years 2-4mcg 18 years + 400mcg 18 years + 4-6mcg pregnant / lactating 1mg pregnant / lactating + 1mcg high-risk women of childbearing age: 5mg Therapeutic Range: 400mcg - 20mg+Therapeutic Range: 50mcg -10mg * Folate is the natural form, folic acid is the synthetic Methylcobalamin is the preferred form of Vit B12 form. Folic acid is about twice as potent as folate. if cyanocobalamin is not tolerated, however side effects (rare) are possible with all forms. Low Levels / Deficiency - Symptoms and/or Risk Factors: Folic Acid: Vitamin B12: Hemolytic and megaloblastic anemia, low energy, Pernicious anemia (numbness and tingling in hands abnormal fetal development (neural tube defect), and feet / nerve damage), shortness of breath, birth high homocysteine levels / vascular degeneration, defects, severe fatigue, dementia, confusion, poor mental disorders, confusion, forgetfulness, insomnia, memory, depression, reduced WBCs and platelet irritability, depression, cervical dysplasia, higher risk formation, loss of appetite, weight loss, sore tongue, to develop some cancers, high blood pressure, headaches, nausea, High levels / Overdose / Toxicity / Negative Side Effects - Symptoms and/or Risk Factors: Folic Acid: Vitamin B12: Kidney damage, abdominal bloating / distention, Can cause folic acid-related anemia if low, nausea, loss of appetite, increased cholesterol numbness or tingling in right arm or right side of face, LDL / HDL ratio, increased zinc and potassium anxieties, panic-anxiety attacks, heart palpitations, requirements, may mask pernicious anemia from hyperthyroid, optic nerve atrophy (in someone with Vitamin B12 deficiency, worsens some types of Leber's disease), insomnia, some types of leukemia, childhood leukemia, higher risk to develop some liver, kidney diseases, cancers when higher amounts of folic acid and may worsen symptoms of mitral valve prolapse, Vitamin B12 are supplemented, may increase tumor / cancer cell division, rash. ===================================================================================
=================================================================================== Vitamin B8 - Inositol - Vitamin B11 - Choline: Vitamin B10 - PABA: (Para-aminobenzoic Acid) DRI (RDA): 40mg (B8) 200mg (B11) DRI (RDA): 25mg Therapeutic Range: 100mg - 3,000mg+Therapeutic Range: 50mg - 1000mg+ Low Levels / Therapeutic Indications: Low Levels / Therapeutic Indications: Inositol / Choline: PABA: Oxidative cell damage, cardiovascular disease, Vitiligo (depigmentation of some areas of the skin), liver disease, low bile production, low total and increased estrogen breakdown by the liver, low HDL cholesterol, low blood pressure, mood hyperthyroid, or mental disorders, gallstones (choline), poor memory / reduced learning capacity (choline), kidney stones (choline), peripheral neuropathy (inositol), panic-anxiety attacks (inositol), High levels / Overdose / Toxicity / Negative Side Effects - Symptoms and/or Risk Factors: Inositol / Choline: PABA: Nausea, vomiting, dizziness, high blood pressure, Liver disease, jaundice, nausea, vomiting, liver disease, kidney disease, cardiovascular disease, increased Vitamin C requirements, increased increased magnesium requirements, may increase Vitamin B6 requirements, decreased estrogen potassium requirements, acne-like skin rash, breakdown by the liver, hypothyroid. ___________________________________________________________________________________ Lecithin: Vitamin B15 - Pangamic Acid: * (also called Calcium Pangamate) DRI (RDA):* 500mg DRI (RDA):* 25mg * estimated / suggested daily intake * no USRDA [may be substituted with DMG ]. Therapeutic Range: 1,200mg - 7,200mg+Therapeutic Range: 50mg - 500mg Low Levels / Therapeutic Indications: Low Levels / Therapeutic Indications: Lecithin: Vitamin B15: Oxidative cell damage, cardiovascular disease, Angina (right-sided), coronary artery spasms high LDL cholsterol, high VLDL triglycerides, (right-sided), some types of panic-anxiety disorders, atherosclerosis, arteriosclerosis, calcification, headaches, Vitamin B12 overdose (from Vit B12 osteoarthritis, edema, fatigue, kidney stones, injection), some types of high blood pressure, joint pains, burning feet, tardive dyskinesia, shortness of breath, asthma, increased lactic acid, learning difficulties, High levels / Overdose / Toxicity / Negative Side Effects - Symptoms and/or Risk Factors: Lecithin: Vitamin B15: Gout, kidney disease, nausea, high blood pressure, Severe fatigue, pernicious anemia (long-term very dizziness, kidney stones, insomnia, osteporosis, high intake), depression, headaches, skin rash, joint pains, edema, burning feet, increased zinc and shortness of breath, nausea, increased calcium requirements, acne-like skin rash, ___________________________________________________________________________________ Vitamin B12 sources: Meat, dairy, eggs, seafood. [Vitamin B12 is only found in animal products, but has been obtained through insect / feces-contaminated grains, fruits, or vegetables], Typical food sources for all other B-Vitamins: Brewer's yeast, unrefined whole grains, liver, all meats, eggs, green leafy vegetables, nuts, seeds. ¤ ===================================================================================
=================================================================================== General recommendations for nutritional supplementation : To avoid stomach problems and promote better tolerance, supplements should always be taken earlier, or in the middle of a larger meal. When taken on an empty stomach or after a meal, there is a greater risk of some tablets causing irritation, or eventually erosion of the esophageal sphincter, resulting in Gastroesophageal Reflux Disease (GERD). It is also advisable not to lie down immediately after taking any pills. When taking a very large daily amount of a single nutrient, it is better to split it up into smaller doses to not interfere with the absorption of other nutrients in food, or nutrients supplemented at lower amounts. ___________________________________________________________________________________ Copyright © 2000-2010 Ronald Roth DRI / RDA of B-Vitamin Complex
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