01
Why supplement?
✓
Supports collagen formation
Vitamin C is a cofactor for collagen synthesis and supports skin, blood vessels, and wound repair.
Mechanism: Established✓
Enhances plant-based iron absorption
Eating with iron-containing plant foods can improve non-heme iron absorption.
Clinical evidence: ModerateADVERTISEMENT
02
How to take it
With foodCan be taken with meals; pairing with plant-based iron helps absorption
Best timeAnytime
Split doses can reduce high-dose gastrointestinal discomfort.
General wellness90 mg/day for adult men; 75 mg/day for adult women; smokers add 35 mg/day
Specific needsDoses for deficiency or special uses should be decided by a clinician.
How oftenGenerally fine for daily use; the adult supplement upper limit is 2,000 mg/day.
03
What to watch
Cautions
People with a history of kidney stones, iron overload, or kidney problems should ask a doctor first.
High doses may increase gastrointestinal discomfort.
Common side effects
· Stomach discomfort
· Diarrhea (high doses)
Rare but important
· People prone to calcium oxalate kidney stones may have higher risk.
Long-term dependenceDoes not cause addiction or typical tolerance.