NutriBiotic Immunity, Ascorbate Bio-C, Vitamin C with Bioflavonoids and Minerals, 16 oz (454 g) supplement bottle
NutriBiotic

Immunity, Ascorbate Bio-C, Vitamin C with Bioflavonoids and Minerals, 16 oz (454 g)

What We Researched
9 active ingredients analyzed · 2 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
69
Product Score Fair
65
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as L-ascorbic acid USP-FCC†) 1,500 mg 1,670%
Calcium (as calcium carbonate-USP) 125 mg 10%
Magnesium (as magnesium carbonate) 75 mg 18%
Zinc (as zinc sulfate-USP) 1 mg 10%
Selenium (as selenium aminomin) 12 mcg 20%
Manganese (as manganese gluconate-USP) 375 mcg 16%
Chromium (as chromium aminomin) 10 mcg 28%
Potassium (as potassium bicarbonate-USP) 50 mg 1%
Lemon Bioflavonoid Complex: Hesperidin, eriocitrin, naringin, and naringenin, flavonols, flavones, and other phenolic compounds 200 mg
Bioavailability Good

Absorption Rating

  • Vitamin C (as L-ascorbic acid USP-FCC†) Fair
  • Calcium (as calcium carbonate-USP) Fair
  • Magnesium (as magnesium carbonate) Poor
  • Zinc (as zinc sulfate-USP) Fair
  • Selenium (as selenium aminomin) Good
  • Manganese (as manganese gluconate-USP) Good
  • Chromium (as chromium aminomin) Fair
  • Potassium (as potassium bicarbonate-USP) Good
  • Lemon Bioflavonoid Complex: Hesperidin, eriocitrin, naringin, and naringenin, flavonols, flavones, and other phenolic compounds Good
Other Ingredients Excellent

Fillers & Additives

No inactive ingredient data available.

Efficacy Very Poor

Dosage Analysis

  • Vitamin C (as L-ascorbic acid USP-FCC†) 1,500 mg Effective
  • Calcium (as calcium carbonate-USP) 125 mg Under-dosed
  • Magnesium (as magnesium carbonate) 75 mg Under-dosed
  • Zinc (as zinc sulfate-USP) 1 mg Under-dosed
  • Selenium (as selenium aminomin) 12 mcg Under-dosed
  • Manganese (as manganese gluconate-USP) 375 mcg Under-dosed
  • Chromium (as chromium aminomin) 10 mcg Under-dosed
  • Potassium (as potassium bicarbonate-USP) 50 mg Under-dosed
  • Lemon Bioflavonoid Complex: Hesperidin, eriocitrin, naringin, and naringenin, flavonols, flavones, and other phenolic compounds 200 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as L-ascorbic acid USP-FCC†) 1,500 mg 1,670%
Calcium (as calcium carbonate-USP) 125 mg 10%
Magnesium (as magnesium carbonate) 75 mg 18%
Zinc (as zinc sulfate-USP) 1 mg 10%
Selenium (as selenium aminomin) 12 mcg 20%
Manganese (as manganese gluconate-USP) 375 mcg 16%
Chromium (as chromium aminomin) 10 mcg 28%
Potassium (as potassium bicarbonate-USP) 50 mg 1%
Lemon Bioflavonoid Complex: Hesperidin, eriocitrin, naringin, and naringenin, flavonols, flavones, and other phenolic compounds 200 mg

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$23$22$21$20$19 Mar 12 $21.00
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
NutriBiotic

Founded 1981 · Lakeport, California, United States · 81 products · nutribiotic.com/

Certifications

2 certifications
Fda Gmp Inspections Verified Source
Usda Organic Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

1 incident
Prop 65 Not specified in the provided document2012-05-09Source
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Frequently Asked Questions
Is NutriBiotic Immunity, Ascorbate Bio-C a good supplement?

NutriBiotic Immunity, Ascorbate Bio-C, Vitamin C with Bioflavonoids and Minerals, 16 oz (454 g) received a product quality score of 69/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 9 active ingredients with 181 servings per container. The manufacturer, NutriBiotic, holds a brand trust score of 65/100 with 2 verified certifications including Fda Gmp Inspections, Usda Organic.

What are the ingredients in NutriBiotic Immunity, Ascorbate Bio-C?

NutriBiotic Immunity, Ascorbate Bio-C contains 9 active ingredients: Vitamin C (as L-ascorbic acid USP-FCC†) (1,500 mg), Calcium (as calcium carbonate-USP) (125 mg), Magnesium (as magnesium carbonate) (75 mg), Zinc (as zinc sulfate-USP) (1 mg), Selenium (as selenium aminomin) (12 mcg), Manganese (as manganese gluconate-USP) (375 mcg), and 3 more. Notable high-dose ingredients include Vitamin C at 1,670% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NutriBiotic Immunity, Ascorbate Bio-C safe to take?

NutriBiotic Immunity, Ascorbate Bio-C, Vitamin C with Bioflavonoids and Minerals, 16 oz (454 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.

Is NutriBiotic a trustworthy supplement brand?

NutriBiotic receives a brand trust score of 65/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1981 and headquartered in Lakeport, California, United States, the company offers 81 products in their lineup. They hold 2 verified certifications including Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: NutriBiotic has 1 historical regulatory incident on record, which are factored into the trust score.

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.