Vitamin C

No vitamin C has been shown to treat constipation - a 2023 review found zero trials. What the loosening effect really is, and what works instead.

What is the correct way to take vitamin C? Dose size and consistency matter more than timing. What the trials show, and the habit most people get wrong.

What is the best way to take liposomal vitamin C? Split the dose, keep it cold, stay consistent. What the absorption research supports, and what it doesn't. 

500 mg a day is the most-studied vitamin C dose in the research. What 27,800 trial participants showed, and why absorption matters at this dose.

No major health authority says to take vitamin C on an empty stomach. Here is what the evidence actually shows, and what matters far more.

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.

How often should you take vitamin C per day? Once is enough for most adults. Splitting only earns its keep above roughly 500 mg at a time.

Does vitamin C make you sleepy or awake? Neither, in any way a trial has shown. What the sleep studies actually found, and the one real link to tiredness.

Can I drink water after taking vitamin C tablets? Yes — and a full glass beats a sip. What water does and doesn't change, plus the two real exceptions. 

What medications cannot be taken with vitamin C? The NIH gives two examples, one warning on the standard list runs the other way, and lab tests matter more.

What happens if you take vitamin C and you don't need it? Mostly nothing — you excrete the surplus. Fewer than 3% of Canadian adults are deficient.

Should I stop taking vitamin C if my pee is bright yellow? Usually no — and the colour is probably riboflavin, not vitamin C. What each shade means.