Here is an example to show how little we really know. Vitamin C is the vitamin we seem to know the most about. Back in 1941 a set of guidelines, called RDA's for Recommended Dietary Allowances, were accepted. The RDA for Vitamin C was 60 to 90 mg because that was the amount that kept our sailors from
getting scurvy if they were aboard ships for long periods. The data, for this important vitamin, from 73 years ago, is still used today and many people believe that is the correct amount of vitamin C to take.
Since then we have learned that we are one of the few animals who don't make vitamin C we have to ingest it. In studying the other animals of the world we find that they manufacture hundreds of times our daily allowance every day. Even vitamin C that we can buy in any drug store is sold in pills that are 1000 mg each which is over 10 times the RDAs (Recommended Dietary Allowances) from the Institute of Medicine (IOM) of the National Academy of Sciences. There are people who have been taking over 10,000 mg of vitamin C, every day, for years, which is over 100 times the RDA.
So what does vitamin C really do for us. There the data and opinions are at odds. As I said at the beginning we don't know much, if we don't even know or agree what vitamin C does after all these years.
Listed below are the things that have been proven about vitamin C
As an antioxidant, vitamin C scavenges free radicals in the body and protects tissues from oxidative stress.
Vitamin C promotes the absorption of iron, while preventing its oxidation.
Vitamin C is a vital cofactor to the formation of collagen, the connective tissue that supports arterial walls, skin, bones, and teeth.
A major immune-supporting activity of vitamin C is boosting glutathione levels in human lymphocytes, cells that make up about 25% of all white cells in the blood.
More vitamin C is contained in the adrenal glands than any other organ in the body and it is required at higher levels during times of stress.
Listed Below are Things Many Do Not Believe Even Though Major Studies Have Been Done
Vitamin C May Lengthen Life Span
Vitamin C’s multifaceted effects in protecting against cardiovascular disease may be partly responsible for the strong association between optimal vitamin C intake and increased life span.
For example, in a major study of more than 19,000 adults aged 45-79, subjects with the lowest plasma levels of vitamin C were twice as likely to die over the course of four years compared to those with the highest levels.15 Furthermore, rates of death from all causes and from cardiovascular disease decreased as vitamin C levels increased across the entire range of plasma vitamin C levels. Even controlling for age, blood pressure, cholesterol levels, cigarette smoking, diabetes, and supplement use, a rise in plasma vitamin C concentration equivalent to that of one fruit or vegetable serving daily was associated with about a 20% reduction in risk of death from all causes.
Similarly, a 10-year study from UCLA showed that in a population of more than 11,000 US adults aged 25-74, men who took 800 mg of vitamin C daily lived about six years longer than men who took only 60 mg of vitamin C daily. Even after controlling for smoking, education, race, diseases, and other factors affecting survival, higher vitamin C intake in men still predicted lower mortality. Increased vitamin C intake was likewise associated with greater longevity in women. Higher vitamin C intake reduced cardiovascular deaths by 42% in men and 25% in women.
Rupturing of atherosclerotic plaque (fatty buildup) in the artery wall can have fatal consequences, including sudden death from a heart attack. Animal studies suggest that chronic vitamin C deficiency contributes to the formation of unstable arterial plaque that is more likely to lead to life-threatening cardiovascular events.17 This association suggests yet another example of how vitamin C’s cardioprotective benefits may contribute to longer, healthier life spans.
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Vitamin C intake has been found to speed resolution of upper respiratory tract infections in young people. Students who supplemented with hourly doses of 1000 mg of vitamin C for six hours and then three times daily thereafter exhibited an extraordinary 85% decrease in cold and flu symptoms compared to those who took pain relievers and decongestants for their infectious symptoms.10
These benefits of improved healing are not limited to children and young adults. Elderly patients that were hospitalized with pneumonia or bronchitis showed substantial improvement following supplementation with vitamin C.11 In a study of women with non-specific vaginal infection, locally administered vitamin C significantly improved symptoms and led to a reduction in bacterial count.12
Vitamin C’s strength in countering bacterial infection was further demonstrated in a study of the dangerous breed of bacteria known as Helicobacter pylori, or H. pylori. Chronic infection of the stomach with H. pylori contributes to gastritis, stomach ulcers, and even deadly gastric cancer.13 In an epidemiological study, however, high intake of the powerful antioxidant vitamins C and E was associated with an astounding 90% reduction in the risk of developing stomach cancer.14 Lending additional support to these findings is another study showing that infection with H. pylori was a major risk factor for gastric cancer in patients with low vitamin C intake, but not in those with high vitamin C intake.18 By protecting against infection with H. pylori, vitamin C may thus help to prevent potentially fatal stomach cancer as well as other painful gastrointestinal complications.
Vitamin C may even have an important role to play in the ongoing global battle to contain the ubiquitous HIV virus.19-21 For example, laboratory experiments indicate that high concentrations of vitamin C are preferentially toxic to HIV-infected cells, thereby promoting their destruction while sparing uninfected immune cells.21 In other laboratory studies of human immune cells, vitamin C helped suppress the HIV virus.19 Moreover, in a clinical study of HIV-infected patients, subjects with advanced immune deficiency who supplemented with high doses of vitamin C and the potent antioxidant N-acetylcysteine exhibited significant improvements in several measures of immune system function.20
Vitamin C Supports Endothelial Function and Protects the Heart
As the aforementioned studies attest, vitamin C’s ability to help prevent and fight infection by strengthening the body’s natural defenses against disease-causing pathogens is uncontested. Less recognized—but perhaps equally important—are the many other ways in which vitamin C supports optimal health.
Mounting evidence, for example, associates higher vitamin C levels with protection against cardiovascular disease, America’s leading cause of premature death. Vitamin C may help support the heart and vascular system by protecting against endothelial dysfunction, preventing heart attacks, and countering the dangerous oxidation of blood lipids.
Scientists now know that one of the instigating factors in cardiovascular disease is the insidious process known as endothelial dysfunction, in which blood vessel walls become stiffer and less able to dilate in response to the body’s need for increased blood flow.
While elevated levels of the amino acid homocysteine hasten endothelial dysfunction, scientists have discovered that pretreatment with vitamin C (1000 mg daily for one week) reduces oxidative stress and thus protects the delicate vascular endothelium from the damaging effects of elevated homocysteine.22
Similarly, researchers have found that while eating a meal high in fat temporarily impairs endothelial function for up to four hours in healthy individuals, pretreatment with the antioxidant vitamins C and E prevents this impairment.23 Scientists have also shown that vitamin C may reduce oxidative stress and subsequent endothelial dysfunction.24
In a study of patients with coronary heart disease, vitamin C enhanced the ability of coronary arteries to expand in response to a naturally occurring vasodilator.25
Smokers often have a drastically impaired endothelium. Vitamin C has likewise demonstrated powerful effects against endothelial dysfunction caused by smoking. In one trial, subjects who received pretreatment with 2000 mg of vitamin C had an impressive 59% reduction in a clinical measure associated with endothelial dysfunction.26 In a similar study, German researchers found that either short-term vitamin C infusion or long-term vitamin C treatment markedly increased blood flow to the heart muscle in smokers. In this same trial, long-term supplementation with vitamin C also increased blood flow to the heart muscle in patients with high blood pressure.
How does vitamin C protect endothelial cells? Although its precise mechanisms of action are not yet fully understood, researchers have discovered that vitamin C, at high doses, activates an enzyme that may be involved in reducing the oxidative stress that can contribute to endothelial dysfunction.
As I stated on our website, we need to do our own studies to prove to us and the rest of the world, what the supplements can or cannot do. Click Here If you want to order buffered vitamin C.
If you want to be part of our study, let me know.
As I stated on our website, we need to do our own studies to prove to us and the rest of the world, what the supplements can or cannot do. Click Here If you want to order buffered vitamin C.
If you want to be part of our study, let me know.
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