required dose for vitamin c
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Ascorbic Acid The average protective dose of vitamin C for adults is 70 to 150 mg daily. In the presence of scurvy, doses of 300 mg to 1 g daily are recommended.However, as much as 6 g has been administered parenterally to normal adults without evidence of toxicity.he average protective dose of vitamin C for adults is 70 to 150 mg daily. In the presence of scurvy, doses of 300 mg to 1 g daily are recommended.
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How much vitamin C should I take when I have a cold? How much vitamin C should be taken to fight off a cold? For normal, healthy adults, the daily recommended amount is 75 mg for women and 90 mg for men. For young children up to 3 years of age, the recommended amount is 15 mg per day and is 25 mg per day for children between the ages of 4 and 8.
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- The amount of Vitamin C needed for children is different than for adults. According to the Daily Recommended Intake on the Baylor College of Medicine website, kids between the ages of two and three need 15 mg of Vitamin C a day.
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Vitamin  C In fact, a high intake of vitamin C offered twice the protection of a low intake. Many of these studies defined a high intake as a daily dosage of 160 mg or more per day; a low intake generally was less than 70 mg.(10).
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Vitamin C: Do High Doses Prevent Colds? The vitamin C dosage was 500 mg once a week (equivalent to about 70 mg daily) before colds, but 1,500 mg the first day of a cold followed by 1,000 mg on the second and third days. No reduction in the incidence of colds was observed, but those taking vitamin C averaged less time at home (1.62 vs. 1.12 days indoors).
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How much vitamin C should I take when I have a cold? Even if you take more than the daily recommended dose, your body is usually able to flush out the extra amount so that you don’t get a toxic buildup of vitamin C in your body. Extremely high amounts of vitamin C are considered to be more than 2,000 mg daily for adults. You may notice certain side effects such as diarrhea, nausea, and kidney stones. How much vitamin C should be taken to fight off a cold? For normal, healthy adults, the daily recommended amount is 75 mg for women and 90 mg for men. For young children up to 3 years of age, the recommended amount is 15 mg per day and is 25 mg per day for children between the ages of 4 and 8. In cases of pregnancy and breast feeding, the daily recommendations are higher.
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- Humans have to consume 3-12 grams of vitamin C per day to get the average amount that is produced by ascorbic-acid-synthesizing animals. Low dose vitamin C supplementation is therefore considered this amount - 3g per day or less.More is taken as required.o use large amounts of vitamin C, get a powdered product, many of which are available in health food stores. If not used to taking vitamin C, start with a small amount mixed in water or juice, enough to get a single gram or less of vitamin C. If it causes stomach upset or diarrhea, use half as much for the next dose.
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Vitamin C Benefits According to the National Institutes of Health (NIH), the recommended vitamin C daily allowance (RDA) for adults over age 19 is: 1  men, 90 mg per day. 2  women, 75 mg per day. 3  pregnant women, 85 mg per day.  breastfeeding women, 120 mg per day.
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- For vitamin C, infants age 0 to 6 months need 40 milligrams a day, while infants 7 to 12 months need 50 milligrams a day. Children ages 1 to 3 years need 15 milligrams daily, those aged 4 to 8 need 25 milligrams daily, and children age 9 to 13 need 45 milligrams daily.
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- It is believed that active people can benefit from taking anywhere from 500 milligrams to as much as 3,000 mg a day, depending on the person's daily activity level. If you are sick, you may need as much as eight grams a day for the duration of your illness. Sources of Vitamin C. Primary Known Sources Include:
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- Tablet and capsule sizes range from 25 mg to 1500 mg. Vitamin C (as ascorbic acid) crystals are typically available in bottles containing 300 g to 1 kg of powder (a 5 ml teaspoon of vitamin C crystals equals 5,000 mg).scorbic acid or vitamin C is a common enzymatic cofactor in mammals used in the synthesis of collagen. Ascorbate is a powerful reducing agent capable of rapidly scavenging a number of reactive oxygen species (ROS).
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Intravenous Vitamin C â the cocktail 1 A simple injection of 5000mg of vitamin C produces a blood value of 3mMol/L and the research has shown that you can kill most cancer cells in the laboratory with values between 0.5 to 3mMol/L.ormal or healthy cells do not respond this way with vitamin C. This phenomenon makes intravenous vitamin C a very unique and targeted treatment unlike any other chemotherapy-like medicine. It is important that each intravenous treatment be tailored to the individual patient and particular situation.
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- The upper limit of intake (UL) should avoid exceeding 2,000 milligrams daily in men or women more than 18 years old (including pregnant or breastfeeding women). Vitamin C administered by mouth or injection is effective for curing scurvy. 100-250 milligrams of vitamin C was given by mouth four times daily for one week.he tolerable upper intake levels (UL) for vitamin C are 400 milligrams daily for children 1-3 years old; 650 milligrams daily for children 4-8 years old; 1,200 milligrams daily for children 9-13 years old; and 1,800 milligrams daily for adolescents and pregnant and lactating females 14-18 years old.
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- Forever Absorbent C. The recommended daily allowance of vitamin C is 60-90 mg. However, according to the Food and Nutrition Board, Institute of Medicine, the tolerable upper intake level of vitamin C by adults is up to 2,000 mg per day.
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Taking Too Much Vitamin C Can Be Dangerous, Study Finds ''The normal healthy individual would not need to take supplements of vitamin C.''. In the United States and Britain alike, the recommended daily intake of vitamin C for healthy adults is 60 milligrams, which can be easily obtained from foods -- by drinking about six ounces of orange juice, for example.
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Maximum Dosage of Vitamin C Maximum Dosage. Women need around 75 mg of vitamin C daily, while men need as much as 90 mg. Since vitamin C is water soluble, your body will excrete any excess vitamin C that it doesn't need. You can safely consume up to 2000 mg, reports the Office of Dietary Supplements.
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Vitamin C Supplements of 500 mg/day vitamin C plus 400 IU vitamin E every other day for a mean follow-up period of 8 years failed to reduce the risk of prostate or total cancer compared with placebo in middle-aged and older men participating in the Physicians' Health Study II [ 34 ].
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Vitamin C Intake for Kids Dosage. The amount of Vitamin C needed for children is different than for adults. According to the Daily Recommended Intake on the Baylor College of Medicine website, kids between the ages of two and three need 15 mg of Vitamin C a day.
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- For antioxidant effects, 200-1,000 milligrams of vitamin C has been given daily for four weeks to a year; 300-3,000 milligrams of vitamin C has been injected into the vein, from a single dose to a duration of eight weeks.or liver disease, 120-3,000 of milligrams vitamin C has been taken by mouth daily for one day to six months; effectiveness on liver disease was lacking. For life extension, 60-2,000 milligrams of vitamin C has been taken by mouth daily for one month to 9.5 years.
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Symptoms of Vitamin C Toxicity As a water-soluble vitamin, most excess vitamin C is flushed from the body in urine. As a result, it does not build up in your system and cases of vitamin C toxicity are rare. The recommended dietary allowance for women is 75 milligrams daily, while men should consume 90 milligrams every day.
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- Although many people take much higher doses of vitamin C, it's not clear that high doses have any benefit. Some studies have found that doses above 200 milligrams are not utilized by the body. Instead, the extra vitamin C is excreted in urine. The tolerable upper intake levels of a supplement are the highest amount that most people can take safely. Higher doses might be used to treat vitamin C deficiencies.
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You Asked: Can I Take Too Much Vitamin C? First thing's first, the recommended daily intake (RDI) of vitamin C is only 75 mg for women and 90 mg for men. For reference, one large orange contains about 160 percent of your daily C needs. Eating more than 75 mg of vitamin C is easy to do and not likely to harm you.
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- For cancer prevention, 120-2,000 milligrams of vitamin C has been taken by mouth daily for six to eight years. For preventing the common cold in people in extreme environments, 200 milligrams or more of vitamin C has been taken by mouth daily for up to 14 days.
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Vitamin C The body also needs vitamin C to make collagen, a protein required to help wounds heal. In addition, vitamin C improves the absorption of iron from plant-based foods and helps the immune system work properly to protect the body from disease. How much vitamin C do I need? The amount of vitamin C you need each day depends on your age. Average daily recommended amounts for different ages are listed below in milligrams (mg). If you smoke, add 35 mg to the above values to calculate your total daily recommended amount.
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- The highest measured vitamin C level exceeded the established Tolerable Upper Intake Level (UL) of 2000 mg/serving for safe vitamin C intake. All tested products passed heavy metal screens for cadmium, lead, and mercury. 4 products were projected to have inorganic arsenic content in excess of 0.1 mcg/serving.
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- How much vitamin C is an effective therapeutic dose? Dr. Klenner administered up to an astounding 300,000 milligrams (mg) per day. Generally, he gave 350 to 700 mg per kilogram (2.2 lb) body weight per day. That is a lot of vitamin C.