Vitamin C and Cataracts

Your website has been significantly improved with your recent new medical input.
However regarding vit C, it is actively concentrated mainly in the eye and brain, when blood levels drop. Most mammals produce the human equivalent of more than 5-10 grams a day over a 24 hour period, except primates, guinea pigs, and a bird species.
Plants can produce Vit C at 70 gm per day in direct sunlight. Knockout genetic studies of these plants failed to produce any results until the second gene was found. Both knockouts were lethal to the plant!! No gluconeogenesis. I think all of this bias comes from the historical medical dislike of Linus Pauling's work on vit C, which he took as a powder, averaging 20 gm per day. He died at the age of 92, even after all the work needed to get 2 Nobel prizes.

The medical profession even now is just beginning to raise maximal dose recommendations. Just to play it safe, I still take only 2 gm per day 4 hour controlled release, now for more than 20 years. My eyesight and hearing is unusually good.
No cataract surgery yet.

JT Flick, PhD astrophysics, (Princeton 1975)

---