Metabolic Nutrition Vitamin-C, Unflavored, 10.58 oz (300 g) supplement bottle
Metabolic Nutrition

Vitamin-C, Unflavored, 10.58 oz (300 g)

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 2 retailers compared · Last updated: Mar 2026
87
Product Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (Ascorbic Acid USP) 1,000 mg 1,100%
Bioavailability Fair

Absorption Rating

  • Vitamin C (Ascorbic Acid USP) Fair
Other Ingredients Excellent

Fillers & Additives

  • None
Efficacy Excellent

Dosage Analysis

  • Vitamin C (Ascorbic Acid USP) 1,000 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (Ascorbic Acid USP) 1,000 mg 1,100%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

None Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$11$10$9$8$7 Mar 12 $9.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Metabolic Nutrition

Founded 1987 · Tamarac, Florida, United States · 113 products · metabolicnutrition.com/

Transparency

2 claims
In House Testing — Verified Source

Violation History

1 incident
Fda Warning Products Synedrex and E.S.P. Extreme were found to contain 2-aminoisoheptane (DMHA), an ingredient that the FDA considers to be a new dietary ingredient for which a New Dietary Ingredient notification is required and has not been submitted. The FDA stated that in the absence of such a notification, the products were considered adulterated.2019-04-10Source
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Frequently Asked Questions
Is Metabolic Nutrition Vitamin-C, Unflavored a good supplement?

Metabolic Nutrition Vitamin-C, Unflavored, 10.58 oz (300 g) received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 1 active ingredients with 300 servings per container. Of the 1 inactive ingredients, 0 are rated safe and 0 are flagged for review.

What are the ingredients in Metabolic Nutrition Vitamin-C, Unflavored?

Metabolic Nutrition Vitamin-C, Unflavored contains 1 active ingredients: Vitamin C (Ascorbic Acid USP) (1,000 mg). Notable high-dose ingredients include Vitamin C at 1,100% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Metabolic Nutrition Vitamin-C, Unflavored safe to take?

Metabolic Nutrition Vitamin-C, Unflavored, 10.58 oz (300 g) has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.