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VitaminStrong Evidence

Vitamin C

Ascorbic acid

A water-soluble antioxidant essential for immune function, collagen synthesis, and iron absorption. One of the most evidence-backed nutrients with involvement in hundreds of enzymatic reactions.

Known Health Benefits

Immune support and white blood cell function
Collagen synthesis for skin and connective tissue
Antioxidant and free radical protection
Enhances non-heme iron absorption

Active Compounds

L-ascorbic acid, dehydroascorbic acid

Dosage Guidance

500–2000 mg daily in divided doses (liposomal for higher bioavailability)

Always consult a healthcare provider for personalized dosing.

Potential Side Effects

GI upset and diarrhea at doses >2g/day; kidney stones risk at very high doses

Known Drug Interactions

May interact with blood thinners, chemotherapy drugs, and statins

Evidence Classification

Strong Evidence

Supported by randomized controlled trials (RCTs), systematic reviews, or meta-analyses published in peer-reviewed journals.

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This entry is for educational purposes only. It is not medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement regimen, especially if you take medications or have health conditions.