Vitamin C

Which disease is caused by low vitamin C? Scurvy — and about 10 mg a day prevents it. Where being low ends and the disease begins, and why cases are rising. 

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.

How to increase vitamin C quickly: aim for about 200mg today, split into two servings, and repeat daily. Blood responds in hours, body stores take days.

What to pair with vitamin C? Only iron has strong evidence, and only at a meal. What the research supports, what it doesn't, and the pairing nobody sells.

Vitamin C deficiency symptoms: early signs can include fatigue and inflamed gums, then bleeding gums and bruising. Who is at risk, and why scurvy is rising.

What drink is high in vitamin C? Fresh orange juice leads everyday drinks, but many juices rank high because vitamin C was added. Here's how to tell.

Is 1 orange a day enough vitamin C? For many non-smoking women, roughly yes. Men typically need nearly two oranges, and smokers need more than two.

Is banana rich in vitamin C? Not by label rules: a medium banana has about 10mg, 11% of the Daily Value. What bananas are rich in, and better vitamin C picks. 

Does hot water destroy vitamin C in lemon? Not on contact. Heat speeds a slow loss, but dose is the real limit: about four lemons to meet a man's daily need.

The best foods high in vitamin C, what storage and cooking strip out before you eat them, and why 41.8% of US adults still have insufficient blood levels.

Vitamin C iron absorption is real but meal-specific. What the radioisotope data shows, why whole-diet trials disagree, and what moves iron most.