Vitamin C

What happens when you start taking vitamin C every day? Blood levels can saturate in two days — but only if you were low. What changes, when, and what doesn't.

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.

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.

What depletes vitamin C? Smoking, alcohol, illness, surgery and some medications all drain it faster than food replaces it. Here's what research shows.

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. 

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.

The best foods high in vitamin C, how much storage and cooking take
before you eat them, and why 41.8% of US adults still fall short. 

Vitamin C deficiency symptoms usually start quietly, not with scurvy. See the blood thresholds, who is genuinely at risk, and why scurvy still appears.