Vitamin C

Most sodas have none, and Sunkist lists 0 mg. Here is which ones actually carry vitamin C, and the absorption ceiling that caps them all.

Acerola and camu camu juice carry 20 to 35 times the vitamin C
of orange juice. Here's the full ranking — and the absorption ceiling that caps
them all.

Vitamin C deficiency can cause fatigue, irritability and low mood, and in scurvy, nerve and movement problems. What the evidence shows, and what else to rule out first. 

How to check if vitamin C is low: a plasma ascorbic acid test, taken fasting and handled properly. What the numbers mean, and when testing is worth it. 

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.

What happens if your vitamin C is very low? Energy fails first, then collagen, then immunity and iron. The timeline down, and how fast it reverses.

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.

How can you get 1000 mg of vitamin C naturally? About eight cups of produce a day, mostly raw — the foods that get you there, and what cooking takes away.

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.

What fruit has 100% vitamin C? None — the richest is about 3% by
weight. But if you mean 100% of the 90mg Daily Value, an orange and a kiwi clear
it.

How can I get 100% of vitamin C daily? Half a cup of raw red pepper covers it. Where the number leaks between shop and plate, and what to do if you fall short.