THORNE
Vitamin C 500 mg
92/100
SUPPIE SCORE
82/100
EFFICACY
High
SAFETY
100/100
CLEANLINESS
What Does Vitamin C 500 mg Do?
500 mg ascorbic acid provides a dose above RDA with established antioxidant and collagen roles; 75 mg citrus bioflavonoids is a modest addition with limited independent evidence at this level.
How does 500 mg vitamin C compare to the RDA for adults?
What evidence supports adding citrus bioflavonoids to vitamin C supplements?
Are there any dose-specific cautions for daily 500 mg ascorbic acid use?
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What Are the Benefits of Vitamin C 500 mg?
Based on proven scientific research
Antioxidant supportStrong
Immune functionModerate
Collagen synthesisStrong
Iron absorptionStrong
Good For:
What Are the Side Effects of THORNE Vitamin C 500 mg?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•500 mg ascorbic acid daily is below the 2 g UL for adults.
•May cause osmotic diarrhea or GI upset at higher intakes.
•Limited data on long-term use with citrus bioflavonoids at this dose.
•Ascorbic acid can increase iron absorption, relevant for hemochromatosis.
•Evidence on pregnancy safety at 500 mg is limited; follow label dosing.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Safe Formulation!
Great news, this product doesn't contain harmful ingredients!
What Are the Ingredients in THORNE Vitamin C 500 mg?
Serving Size: One Capsule One Capsule Contains: 556% Vitamin C (as Ascorbic Acid) Citrus Bioflavonoids
75 mg
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Dosage & Bioavailability
How the active doses and forms in Vitamin C 500 mg compare to the research.
•Vitamin C (as Ascorbic Acid) — 500 mg; exceeds adult RDA of 75-90 mg/day and approaches levels studied in trials up to 2000 mg.
•Vitamin C (as Ascorbic Acid) — 500 mg; synthetic ascorbic acid form shows plasma saturation near 400 mg daily intake with decreasing absorption efficiency at higher single doses.
•Citrus Bioflavonoids — 75 mg; absolute standardized amount is stated directly with no disclosed blend or percentage, limiting comparison to studied flavonoid doses.
Sources & References
Frequently Asked Questions
Common questions about THORNE Vitamin C 500 mg