Which Vitamin C supplements are beneficial for the eyes?
Health Canada has released a new recommendation on which supplements are safe and effective for the eye, and what the recommended dosages should be.
The new advice comes after several studies, including one published in the Journal of the American Academy of Dermatology, showed that vitamin C supplements may not be as effective as those found in the popular vitamin C pills.
It also comes after two recent studies, one in the American Journal of Epidemiology and the other in the New England Journal of Medicine, that found that some vitamins may not have as strong of an effect as they are advertised.
The new guideline, which Health Canada released on Thursday, states that: “Vitamin C is a potent antioxidant that is needed to support the normal function of the eyes and may help prevent the formation of cataracts.”
It recommends the following vitamin C doses:1.
One teaspoon (13 milliliters) of vitamin C taken before bedtime.2.
One capsule (50 mg) taken before meals, at the beginning of the day, and every day for 10 days.3.
One tablet (2.5 mL) taken every day.4.
One glass (8.5 ml) taken at least every 2 hours, for 10 to 12 hours, with the recommended dose every day (maximum 2 capsules taken at once).5.
One or two capsules taken every 3 hours, at least once a day.
The recommendations don’t recommend the use of vitamin supplements that are “overly sweet,” “high in fat,” or “high fat,” and it recommends that the daily dose be as close to one teaspoon of vitamin c as possible.
“The recommended daily dose of vitamin, vitamin E, and/or beta carotene is 1 teaspoon, and is the maximum amount needed for optimal absorption, including to support healthy eyesight,” the guidelines state.
However, “in some individuals, the recommended daily intake may be too low for optimal results.”
The guidelines also state that vitamin supplements may be more effective in certain circumstances.
For example, there’s been evidence linking a higher intake of vitamin E to reduced risk of catarsis.
“This research suggests that the risk of developing cataract progression is reduced by an intake of up to 200 IU (international units) of beta carotinate and vitamin E per day,” the new guidelines state, referring to beta carota which is found in some fruits and vegetables.
“Therefore, vitamin C may be an effective alternative to the conventional beta carochos, which are also high in beta caromotinine.”
According to the guidelines, the use and administration of beta-carotene and vitamin C can help prevent catarachis.
However this advice is not without its risks.
According to a new study, people taking vitamin C capsules are more likely to develop cataras and more likely than placebo recipients to have cataracitis.
“It’s important to understand that the risks of vitamin and mineral supplementation do not diminish with time,” the researchers wrote in their study, which was published in PLOS One.
“In addition, there are several studies that have shown vitamin C to increase the risk for developing catarrhis.”
“Vitamin and mineral supplements can increase the rate of catarrhs in a patient,” they added.
“Therefore, it is important to ensure that your healthcare provider and/ or your physician knows how you’re taking the supplements.”
“There is also a lack of knowledge regarding the effectiveness of vitamin or mineral supplements in preventing catarascariasis,” the study concluded.