Antioxidants

Vitamin C quiz

Vitamin C is the strongest antioxidant normally in our diet

According to chemistry textbooks, there are no such things as bioflavonoids
Collagen is the flexible protein found in our skin. As we age the quality and the quantity of collagen in our skin diminishes
Scurvy is a disease where inferior collagen is produced by the body. This is caused by lack of vitamin C which is essential for the production of healthy collagen
Pure vitamin C cannot cure scurvy
The daily requirement for vitamin C is 30 milligrams. Megadoses of vitamin C (doses of 1000 milligrams or more) are probably harmful and have been shown to cause genetic damage
During the production of healthy collagen, proteins must be oxidised. This involves free radicals, without which the proteins cannot be oxidised correctly
The bioavailability of polyphenols in our diet is probably zero, in other words, virtually none of the polphenols in our diet will ever get to the cells that produce collagen in our skin
Polyphenols in cosmetics are unlikely to penetrate the skin and will have little effect on the skin. Those polyphenols that are readily available to cosmetics manufacturers and are known to have an effect on the skin, such as catechol and pyrogallol, have been banned from cosmetics sold within the European Union

Co-enzyme (ubiquinone) is said to be an important antioxidant and it has become a popular cosmetic ingredient and health supplement but in fact, its main function in the body is the exact opposite of an antioxidant

 

The article below was taken from http://www.vitalhealthzone.com/nutrition/vitamins/bioflavonoids.html on 12 Jan 2010 10.00 am.


" People suffering from cold sores, should consider taking an initial supplement of 1,000-mg of both Vitamin C and bioflavonoids as well as lysine (the amino acid which reduces the virus that causes cold sores), and then 500 mg of each, three times a day. A daily intake of Vitamin C and bioflavonoids may susceptibility to cold sores lessen"

What is wrong with this article?

With no chemical meaning why do you think the term bioflavonoid was introduced?

 

What is scurvy?


How are the symptoms of scurvy, such as bleeding of the gums, poor healing of wounds, attributed to poor collagen production?

 

What are polyphenols?

Why are they not likely to be available to healthy cells if we ingest them?
If you answered true to all the statements then you are correct.
Now lets look at cosmetics and antioxidants