The Linus Pauling Institute cites a paper in Critical Reviews in Food Science and Nutrition urging that the vitamin C RDA rise from 75 mg for women and 90 mg for men to 200 mg a day, noting marginal deficiency in a quarter to a third of people in US and Canadian studies.
Section archive
Vitamin C
- All desks
- Abortion
- Accutane
- Acetaminophen
- Acid Reflux
- Acidic Foods
- Acne
- Acrylamide
- Acupuncture
- Additives
- ADHD
- Adiposity
- Advisories
- Aerobic Exercise
- Aflatoxin
- Agave
- Agent Orange
- Aging
- Agriculture
- AIDS
- Air Pollution
- Airline Passengers
- Airport
- ALA
- Alcohol
- Alcoholic Beverage
- Alerts
- Allergy
- Alli
- Aloe Vera
- ALS
- Alternative Medicine
- Aluminum
- Alzheimer's
- Amalgam
- AMD
- Ampyra
- Amygdala
- Anal Cancer
- And
- Anemia
- Angiogenesis
- Animal Protein
- Animals
- Anorexia
- Anthocyanins
- Anthrax
- Anti-Angiogenesis
- Anti-Obesity
- Antibacterial
- Antibiotic
Vitamins
Vitamin C cures polio, pneumonia and leukemia
The piece relays a NaturalNews article claiming Frederick Klenner cured polio and pneumonia patients with mega-dose vitamin C in the 1940s and 1950s, and recounts a New Zealand man with pneumonia and leukemia recovering after his family demanded intravenous and then liposomal vitamin C.
Vitamins
This vitamin lowers your high blood pressure - new study
Pooling 29 trials, researchers found a median 500 mg a day of vitamin C for about eight weeks lowered systolic pressure by 3.84 mm Hg and diastolic by 1.48 mm Hg, with slightly larger drops in people with hypertension. The authors call for long-term trials.
Vitamins
Vitamin C cuts Radiation-Induced Cancer Risk
Of 16 men who worked 5 to 6 weeks in a contaminated area at Fukushima, the four given intravenous vitamin C beforehand plus antioxidant supplements throughout showed no significant change in blood chemistry, free DNA or 47 cancer-related genes. Three who went without showed elevated risk.
Vitamins
Vitamin C, E supplements may fight gastric or esophageal cancer
In a 15-year follow-up of the Shandong Intervention Trial reported in JNCI, Jun-Ling Ma's team found patients given vitamin C, vitamin E and selenium were about 50 percent less likely to die of gastric or esophageal cancer. Garlic treatment showed no statistically significant effect.
Vitamins
Vitamin C helps diabetes patients
A 12-week double-blind trial of 70 type 2 diabetes patients in India found that those adding vitamin C to metformin ended with higher plasma ascorbic acid and better fasting glucose, post-meal glucose and HbA1c than patients on the drug alone.
Vitamins
Vitamin C may help prevent stomach cancer
Reviewing earlier clinical studies, researchers report high H. pylori prevalence tracks with low vitamin C in blood and gastric juice, and that high gastric vitamin C may inactivate the bacteria's urease. They suggest supplementing after standard treatment to prevent reinfection, not a cure.
Vitamins
Vitamin C may help heart failure patients
Among 212 heart failure patients, those with low vitamin C intake were 2.4 times more likely to show elevated hsCRP, and those with both low intake and hsCRP above 3 mg/L were about twice as likely to die of cardiovascular disease during the first year of follow-up.
Vitamins
Vitamin C, E cut breast cancer recurrence and death risk
Among 2,264 breast cancer patients in the Life After Cancer Epidemiology cohort, frequent vitamin C and E use was linked to roughly 30% lower odds of recurrence and of death from any cause, while frequent use of combination carotenoids was tied to higher mortality.
Supplements
Intravenous vitamin C helps breast cancer patients
A study of 53 breast cancer patients found those given intravenous vitamin C alongside standard therapy reported side effects such as nausea, fatigue and depression at half the intensity recorded in 72 patients who received conventional treatment only.
Vitamins
Vitamin C, vitamin D may help fight lung cancer
Taiwanese researchers implanted Lewis lung carcinoma in mice, then injected vitamin C and vitamin D combinations twice weekly for 28 days. They report dose-dependent suppression of tumour growth and spread, normalised body weight and lower plasma metalloproteinase activity.
Vitamins
No cure for Alzheimer's disease? Try vitamin C!
A Journal of Biological Chemistry study of brain tissue from mice with Alzheimer's found vitamin C dissolved the toxic misfolded protein aggregates, as did dehydroascorbic acid, its oxidized form. The work was done on tissue in the lab, not in people.
Cancer
Vitamin C, k3 may be enlisted to cure leukemia
In Jurkat and K562 leukemia cell lines, vitamin C combined with vitamin K3 triggered apoptosis through an oxidative stress pathway involving NF-kB, p53, c-Jun and caspase-3. Cell death peaked at ratios of 1 to 1,000 and 1 to 100. Animal studies are still needed.
Vitamins
OHSU scientists discover new role for vitamin C in the eye -- and the brain (PR)
Oregon Health & Science University scientists report in the Journal of Neuroscience that GABA-type receptors in retinal nerve cells stopped working properly once vitamin C was removed. Because the retina belongs to the central nervous system, they suspect the brain needs it too.
Nutrition
High vitamin C, calcium may prevent diabetes
Among 232,007 people in the NIH-AARP study, vitamin C supplements tracked with 9 percent lower diabetes risk and calcium supplements with 15 percent lower. Multivitamins showed no link, and neither did vitamin E or other individual vitamins and minerals.
Vitamins
Vitamin C, Omega 3 fatty acids cut death risk from cardiovascular disease
Following 58,730 Japanese adults for 16.5 years, researchers found women with the highest vitamin C intake were 30% less likely to die of stroke and 37% less likely to die of coronary heart disease. The association was not significant in men, and vitamins A and E showed none.
Vitamins
This vitamin helps prevent Alzheimer's disease
Mice bred to model Alzheimer's and given vitamin C solutions for six months showed less oxidative brain damage, fewer soluble amyloid-beta oligomers and slower behavioural decline. Vitamin C did not affect brain plaque deposition.
Comments
Now the FDA is Going After Vitamin C!
Mercola reports that the FDA has notified at least one pharmacy it may no longer make or distribute injectable vitamin C, and may also be banning injectable magnesium chloride and B-complex, the other ingredients of the Myers Cocktail.
38 stories