Vitamin C
Powerful antioxidant essential for immune function, collagen synthesis, and iron absorption. While citrus fruits are common in India, cooking destroys vitamin C, making deficiency more common than expected.
Pharmacists & Nutrition Researchers · Updated March 2026
500–1000 mg
Dosage
morning
Timing
Strong
Evidence
1 cited
Studies
Benefits of Vitamin C
Potent antioxidant protecting against oxidative stress
Essential for collagen synthesis (skin, joints, blood vessels)
Enhances non-heme iron absorption (critical for vegetarians)
Supports immune cell function
May reduce severity and duration of colds
How Vitamin C Works
Ascorbic acid serves as an electron donor for enzymatic reactions including collagen synthesis (prolyl and lysyl hydroxylases) and neurotransmitter production. It regenerates Vitamin E and enhances iron absorption by reducing Fe3+ to Fe2+ in the gut.
Recommended Dosage
Split doses (500mg twice daily) absorb better than a single large dose. Liposomal vitamin C has higher bioavailability. Take with iron-rich meals if addressing iron deficiency. High doses (>2g) may cause GI distress.
Who Should Avoid Vitamin C
Key Research
Vitamin C and immune function (2017)
Regular supplementation reduced cold duration by 8% in adults and 14% in children
DOI: 10.3390/nu9111211Recommended Vitamin C Brands in India
Carbamide Forte Natural Vitamin C 1000mg (Amla Extract)
Carbamide Forte
"Amla-derived natural Vitamin C with high bioflavonoid content — more bioavailable than synthetic ascorbic acid. Non-acidic form suitable for sensitive stomachs."
Carbamide Forte Natural Vitamin C 1000mg (Amla Extract)
Carbamide Forte
"Amla-derived natural Vitamin C with high bioflavonoid content — more bioavailable than synthetic ascorbic acid. Non-acidic form suitable for sensitive stomachs."
Products are selected based on quality, testing, and purity — not affiliate economics. See our selection criteria.
Works Well With
Frequently Asked Questions
What is Vitamin C used for?
Powerful antioxidant essential for immune function, collagen synthesis, and iron absorption. While citrus fruits are common in India, cooking destroys vitamin C, making deficiency more common than expected.
What is the recommended dosage of Vitamin C?
The clinically studied dosage range is 500–1000 mg per day. Split doses (500mg twice daily) absorb better than a single large dose. Liposomal vitamin C has higher bioavailability. Take with iron-rich meals if addressing iron deficiency. High doses (>2g) may cause GI distress.
When is the best time to take Vitamin C?
Vitamin C is best taken in the morning. Split doses (500mg twice daily) absorb better than a single large dose. Liposomal vitamin C has higher bioavailability. Take with iron-rich meals if addressing iron deficiency. High doses (>2g) may cause GI distress.
Is Vitamin C safe?
Vitamin C is generally considered safe at recommended dosages. However, it may be contraindicated for: Hemochromatosis (iron overload), History of oxalate kidney stones (high doses), G6PD deficiency (very high IV doses). Always consult a healthcare professional before starting any supplement.
Is Vitamin C vegetarian?
Vitamin C supplements are available in vegetarian form. Check the specific product label for capsule ingredients.
Can I take Vitamin C with other supplements?
Be aware of these interactions: Enhances iron absorption — beneficial for most but monitor with hemochromatosis. May interfere with certain chemotherapy drugs. High doses may affect blood sugar readings
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