Buffered Vitamin C 500 mg by Metabolic Maintenance

100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
25% of ingredients have research evidence

B Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C and citrus bioflavonoids are supported by strong evidence for antioxidant support and immune function. Calcium and sodium act as buffering agents to reduce the acidity of the formulation. Research indicates these ingredients are generally safe for consumption.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Open Full PDF View on NIH DSLD →

Details

Label Data

1 Capsule(s)

Serving Size

Servings

Other Combinations

Product Type

25%

Evidence Coverage

Ingredients

Supplement Facts — Evidence Check

Vitamin C

500 mg (556% DV)

Calcium

12 mg (1% DV)

Sodium

15 mg (1% DV)

Citrus Bioflavonoids

75 mg

Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Vegetarian Cellulose Capsule

Claims

Label Claims — Verification

Unverified Nutrient

Unverified All Other

Info

Product Information

Directions for Use

Best consumed within 120 days after opening.

Directions: One (1) capsule daily with a meal, or as directed by a healthcare professional.

Warnings & Precautions

Keep tightly closed in a cool, dry place, out of the reach of children.

Formulation Notes

Egg free Gluten free Free of nuts Dairy free

Manufactured in a GMP Compliant Facility

Buffered Vitamin C 500 mg with Bioflavonoids

Additional Information

Keep tightly closed in a cool, dry place, out of the reach of children.

Moisture sensitive formula.

Metadata

Product Details

UPC / SKU8 38287 00230 7

DSLD Entry Date2022-09-22

Product TypeOther Combinations

FormCapsule

BrandMetabolic Maintenance

DSLD ID273999

Data Updated2026-04-11

Research

Research Evidence

371

Research Sources

Avg Quality

148

Meta Analysis

Systematic Review

Rct

Clinical Trial

Regulatory Source

Cochrane Review

Narrative Review

Other

Openfda Safety

A Vitamin C supplementation in pregnancy

Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI

A Vitamin C supplementation for the primary prevention of cardiovascular disease

Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI

A Vitamin C for preventing and treating the common cold

Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI

A Vitamin C for preventing and treating pneumonia

Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI

A Vitamin E supplementation in pregnancy

Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI

A Vitamin C supplementation for prevention and treatment of pneumonia

Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI

A Vitamin C supplementation for prevention and treatment of pneumonia

Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI

A Nutritional interventions for preventing and treating pressure ulcers

Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI

A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis

Meta Analysis International journal of molecular sciences 2024 PubMed DOI

A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study

Meta Analysis BMC medicine 2021 PubMed DOI

View all evidence for Vitamin C →

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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.