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utrient umbers.com |
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Optimal Daily Allowance (ODA) is often many times higher than the Recommended Daily Allowance (RDA). The RDA is designed to give you the minimal amount required to avoid deficiency diseases, such as scurvy and rickets. This does not always factor in an individuals need for more of a specific nutrient to combat the effects of toxins and pollutants, nutrient deficient foods, stress, genetics and lack of sleep, among other factors. The ODA gives you enough of a specific nutrient not to just stave off deficiency but to have you body functioning at more efficient levels. Examples of differences: Vitamin C: RDA is 85 mg, ODA is 250 - 3,000 mg Vitamin E: RDA is 15 IU, ODA is 50 - 800 IU Magnesium: RDA is 350 mg, ODA is 400 - 600 mg Vitamin B12: RDA is 3 mcg, ODA is 10 - 100 mcg (The optimum daily allowance and safe range assumes an completely healthy non-pregnant, also not trying to get pregnant, non lactating adult who is not on prescription drugs and who intends to use nutritional supplementation to optimize heath rather than to avoid deficiency state diseases such as scurvy or rickets.These figures are not reflective of recommendations set by any governmental agency, as none exist, with the exception of vitamin C and E, which the National Academy of Science has set as 2,000 mg and 1,500 IU, respectively, as the recommended upper limit.) There is generally no benefit to exceeding the Optimal Daily Allowance, except under expert medical guidance. Since each person is different, always consult a knowledgeable professional in nutritional medicine prior to embarking on any supplementation program. While nutritional supplementation is generally very safe, those with specific health conditions should consult personal health care professional first. Vitamin A ODA: 5000 I.U. Safe dosage up to 20,000 I.U. Overdose: Headaches, dry skin, and liver damage in dosage over 25,000 I.U. Beta Carotene ODA: 10,000 -20,000 I.U. Non toxic up to 100,000 I.U. a day Over 100,000 I.U. a day causes a yellowish tone on the skin which disappears when stopped and can help prevent sun damage to skin. Vitamin C ~ Ascorbic Acid ODA: 1200 -3,000 mg Non toxic as water soluble. Some experience slight diarrhea after several thousand milligrams, while others showed no symptoms. Vitamin D-3 ~ Cholecalciferol ODA: 100 I.U. Toxic if over 1000 I.U. for long period of time. Continuous overdose of 1000 I.U. can lead to headaches, kidney stones, and deafness, and death Vitamin E ~ Tocopherol ODA: 400 I.U. ( up to 800 I.U can be taken for normal optimum health ) Toxic if over 3000 I.U Intake of over 3000 I.U. can cause headaches, diarrhea, increased blood pressure B1 Thiamin ODA: 100 mg Non toxic B2 riboflavin ODA: 50 mg Non toxic B3 Niacin ~ Niacinamide ODA: 10-20 mg of niacin. ODA: 100-250 mg of niacinamide Non toxic; some flushing with niacin; nianamide more gentle. Rare liver problems have been reported in intake of over several thousand mg B6~Pyridoxine ODA: 100 mg Non Toxic At long term very high levels ( 2000 mg a day), seneroy nerve damage have been reported. B9~Folic Acid ODA: 800 mcg Generally take enough from food as reliable source Non-toxic; no side effects with 5000-10000 mcg intake. Very high dose of folic acid can mask the symptoms of B12 deficiency and prenicious anemia B12~Colbalamin ODA: 100 -1,000 mcg Non toxic B5~Pantothenic Acid ODA: 100-500 mcg Non toxic; very large amounts ( several grams a day) can cause diarrhea Lysine ODA: 500-1000 mg Non Toxic Over 2000 mg to 3000 mg have been linked to increased risk of gallstones and cholesterol Choline Choline; ODA: 200-300 mcg per day Non-toxic Diarrhea or nausea when over several grams a day Inositol ODA: 100-200 mg per day. No toxicity has been reported. Large amount reduces the absorption of calcium, iron and Zinc. PABA ODA: 50 mg per day for maintenance (500 mg to 12 grams for specific diseases) 8 grams a day may lower blood sugar, rash, fever, and in rare occasion, liver damage Bioflavonoids ODA: 100-200 mg for maintenance; 1 gm for treatment In healthy diet No consistent toxicity other than a bioflavonoid called cianidanol which is NOT found in supplements Calcium ODA: Up to 2500 mg a day for long term use. No problem unless one has ulcer as too high calcium unabsorbed can cause milk alkali syndrome. Too much calcium can cause constipation V Supplement of 100-400 I.U of vitamin D a day is recommended for those on calcium supplement Iodine ODA: 150 mcg High dose (several milligrams per day) can interfere with normal thyroid function and may lead to goiter in some cases. Magnesium ODA: 500 mg-1000 mg Over 700 mg of daily elemental Magnesium can cause diarrhea. Don't take if you have Kidney problems or severe heart failure Zinc ODA: 30mg High dose ( over 300 mg per day) can impair immune function Zinc can inhibit copper , Iron, Calcium, and Magnesium absorption in high doses, so it is prudent to take minerals as part of a multi-mineral supplement. Selenium ODA: 200 mcg. Toxic if over 2500 mcg a day; with hair loss, liver damage, joint inflammation after 5000 mcg a day Copper Not needed as is plentiful in regular diet. ODA: up to 3 mg day is acceptable; especially in people taking extra zinc supplement (which inhibit absorption) Toxicity is unclear. Up to 3 mg a day is considered safe People with Wilson's Disease should not take copper supplement at all. People drinking tap water (copper pipes) do not need more. Manganese ODA: 20 mg No toxicity or side effect in doses of 5-20 mg; Excessive intake can lead to rare side effects of dementia and psychiatric symptoms People with liver cirrhosis may not be able to properly excrete manganese so these people should not take Manganese supplement. Chromium ODA: 200 mcg No toxicity up to 100 times the 200 mcg dosage. Molybdenum ODA: 50 mcg Very safe up to 1500 mcg per day, but it can interfere with Copper absorption; Excessive intake can lead to gout like symptoms as it is needed to convert purine to uric acid Potassium ODA: 99 mg Supplementary levels do not lead to accumulation in the body and thus lack of toxicity Silicon ODA: 2.4 mg High dietary intake is not associated with any toxic effect. Inhalation of large amount of silicon ( in an industrial setting) can cause respiratory disease called silicosis. Vanadium RDA: 25 mcg Optimum intake dose is unknown. Estimated is 10-20 mcg a day. Very limited info about toxicity. High blood levels have been linked to manic depressive mental disorders. Iron ODA: Not present. Excess iron have been linked to diabetes, cancer , increased risk of infection, lupus erythematosus, and exacerbation of rheumatoid arthritis. Superoxide Dismutase ODA: 100 mg |