Study Shows Daily Recommendation of Vitamin C Should be Higher
A recent analysis of the daily recommendation for vitamin C intake found that the current recommended daily values are much lower than they should be. Currently the RDA is 75 mg for women and 90 mg for men. These levels were derived from the levels necessary to prevent scurvy.
The researchers believe the levels should be raised to 200 mg per day for adults. They also criticized the trials used to determine optimal vitamin C levels. They say they are too short term to truly measure the value of vitamins, which may take a long time to show their beneficial effects.
The researchers found that 25% to 33% of the people in the US and Canada are vitamin C deficient when measured by the current RDA. If the recommended amount of vitamin C were to be increased, the number of people with deficiencies would be much higher.
Previous studies have suggested that higher vitamin C intake is associated with lower blood pressure, lower risk of mortality from cardiovascular disease and even a potentially lower risk of dying from cancer.
The researchers were based at the Linus Pauling Institute. Their findings were published on June 14, 2012, in the journal Critical Reviews in Food Science and Nutrition.
In addition to the ailments listed above, vitamin C has been linked with immune system function, brain health, eye health and improved mood. It can be found in high levels in citrus fruits and dark leafy greens such as cantaloupe, oranges, kiwis, papaya, broccoli and kale.
If you have trouble integrating those foods into your diet, consider adding a high quality supplement.