BioStacks
MegaFood

Ultra C 400 mg

1 Tablet · 60 servings · $0.50/serving

iHerbAmazon

Best for

Immune

Ingredients (10)

Vitamin C

100%

Dose

400 mg

Target

250–2000 mg

Form

Budget

Food Blend

12%

Dose

575 mg

Target

5000–15000 mg

Form

—

Organic Beetroot

Amount not found

Organic Blueberry

Amount not found

Organic Cranberry

Amount not found

Other Ingredients (6)

Rice ProteinFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports have documented elevated arsenic in rice products). Used as a cheap filler. Incomplete amino acid profile adds no meaningful protein benefit at excipient doses.

Autolyzed YeastFlavor

Yeast that has been broken down to release naturally occurring amino acids and flavor compounds

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

Plain ascorbic acid is acidic — high doses can bite on an empty stomach. Take it with food if that happens, and split doses above ~500 mg.

With or without food

On the label

Take 1 tablet daily with a beverage. May be taken anytime throughout the day, even on an empty stomach.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$29.99

$10$20$50

Pricier than 75% of 99 fruit & vegetable blend supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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