Vitamin C basics - Dr Suzanne Humphries - Auckland, New Zealand - 2015

Vitamin C may function both within and outside of cells, neutralizing free radicals and preventing free radical damage. Vitamin C is a great supply of electrons (hydrogen) for free radicals striving to reestablish their stability. Therefore, vitamin C protects against damage caused by free radicals. Vitamin C doesn't get unstable after it donates an electron.

After donation GLUT10 (glucose transporter 10) facilitates transport of L-dehydroascorbic acid (DHA), the oxidized form of vitamin C, into mitochondria, the Mitochondria buffers and redoxes (glutathione) the (L)-dehydroascorbic acid. Glutathione and ascorbic acid are linked in a redox couple.

The Mitochondria produces a lot Reactive oxygen species (ROS) and these "free" oxygen atoms can become dangerous compounds if they aren't removed from the cell quickly.

Mitochondria are complex organelles that play a central role in energy metabolism.

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