Vitamin C

Vitamin C builds the collagen in artery walls, but trials found no drop in cardiovascular events. What it does, what it can't, and where evidence stops.

Why do I feel so good after taking vitamin C? Usually it is not the vitamin, unless you were low. What the trials found, and what else changed that week.

Intravenous is fastest, but among oral doses smaller is 
quicker: 30mg peaks in 25-50 minutes, 500mg takes four hours. Liposomal 
absorbs more, not sooner.

What has 6000 times more vitamin C? Nothing does — the figure is astaxanthin's antioxidant potency, not vitamin C content, and it traces to one 2007 study.

A 79-cultivar screen put Marie Joseph d'Othee highest at 26.7 mg per 100 g. The ranking shifts by orchard and year, and peeling or cooking costs far more.

Is too much vitamin C hard on your kidneys? Below the 2,000mg upper limit, rarely. The stone risk, who it affects, and why the mechanism is oxalate.

What juice has 100% vitamin C? Orange juice — 93 mg per ¾ cup,
103% of the Daily Value. Why the number on the carton is not your personal target.

Which two superfoods are very high in vitamin C? Kakadu plum and camu camu. What the numbers actually mean, and why absorption is a separate question.

How long does liposomal vitamin C take to start working? About 4 hours to peak — no faster than regular vitamin C. Shifting your levels takes days to weeks. 

What organ does vitamin C affect? All of them - but it pools in the adrenal glands, brain and eyes, and leaves through the kidneys, where the one caution sits.

Which 3 fruits are highest in vitamin C? By concentration: Kakadu plum, camu camu, acerola. In the shops: guava, kiwifruit, orange. Why both are right.

Camu camu, acerola, Kakadu plum and sea buckthorn are all called the king of vitamin C. Here is why the numbers disagree, and what reaches your blood.