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Vitamin C + D3 & Zinc

NutriBiotic Immunity
4.9
★ ★ ★ ★ ★
(19597 ratings)
Vitamin C 1500 mg
Zinc 40 mg
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Score95

This potent capsule provides very high doses of Vitamin C (1500mg), Vitamin D3 (5000 IU), and Zinc (40mg), offering comprehensive immune and general health support at an excellent value.

How scoring works
Quantity:250 Capsule(s) • (125 servings)
Goals:
Immunity
Anti-Inflammatory Support
Skin Health
General Health
Hair Health
Testosterone Support
Vision Support

Score 95

This potent capsule provides very high doses of Vitamin C (1500mg), Vitamin D3 (5000 IU), and Zinc (40mg), offering comprehensive immune and general health support at an excellent value.

How scoring works
$22.49($0.17 per serving)
Walmart
$ 22.49
iHerb
$ 22.49
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Analysis

NutriBiotic Immunity Vitamin C + D3 & Zinc is a highly potent capsule supplement designed to provide comprehensive support for the immune system and overall well-being. It delivers exceptionally high doses of three critical micronutrients: Vitamin C (as L-Ascorbic Acid), Vitamin D3 (as Cholecalciferol), and Zinc (as Zinc Sulfate). This combination is particularly geared towards individuals seeking robust nutritional support, especially for their natural defenses.

Each serving offers a substantial 1500mg of Vitamin C, 125mcg (5000 IU) of Vitamin D3, and 40mg of Zinc. These quantities are considerably higher than daily recommended values, making it a powerful supplement for specific needs. The inclusion of Vitamin D3 is crucial for bone health and complements Vitamin C and Zinc's roles in supporting immune function, making it a synergistic formula.

This product stands out for its high potency and excellent value, with a very low price per serving and a large number of positive customer reviews. While the high doses of Zinc and Vitamin C can be highly beneficial, users should be mindful of these levels for regular intake. It's a straightforward product focusing on delivering these three essential nutrients effectively and economically.

Pros

  • Very high doses of Vitamin C (1500mg), Vitamin D3 (5000 IU), and Zinc (40mg).
  • Exceptional value with a very low price per serving.
  • Includes Vitamin D3, which is critical for bone and immune health.
  • Large number of positive customer reviews.
  • Simple, focused formula for key immune nutrients.

Cons

  • The 40mg Zinc dose is very high and may not be suitable for long-term daily use for all individuals without professional guidance.
  • The 1500mg Vitamin C dose is also quite high and could cause digestive upset in sensitive individuals.
  • Zinc Sulfate, while effective, can sometimes be less gentle on the stomach than other forms like citrate or picolinate.

Warnings

  • The 40mg dose of Zinc is considerably higher than daily recommendations and could lead to copper imbalance or other issues with prolonged use. Consulting a healthcare professional is strongly advised before daily, long-term intake.
  • High doses of Vitamin C (1500mg) may cause digestive discomfort, such as stomach upset or diarrhea, in some sensitive individuals.
  • Individuals with kidney conditions or those prone to kidney stones should exercise caution with very high Vitamin C intake and consult a doctor.
  • Always ensure your total daily intake of Vitamin D from all sources does not exceed safe upper limits.

Nutrient quality

85 Highest impact

Provides therapeutic dosages for core immune nutrients that offer high breadth across defense pathways. Nutrient quality is limited by the use of inorganic mineral forms and the absence of balancing cofactors.

Ingredient transparency

99 Highest impact

Labeling is exceptionally clear and provides individual weights and chemical nomenclature for all active components. Full disclosure of the formula's composition supports its use for clinical-aligned goals.

Customer satisfaction

98 Highest impact

Remarkably high ratings from nearly twenty thousand users indicate exceptional consumer confidence and satisfaction with the product's performance. The large review volume provides statistical assurance of the product's reliability.

Value for money

98 Highest impact

Extreme cost-efficiency per serving makes this one of the most budget-friendly intensive immune products on the market. High raw material weights and bulk sizing provide unmatched value for budget-conscious consumers.

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Goals

Impact
Highest effect
A+ Goal FitA+ Strength of SupportA+ CoverageA+ Formula Quality

Vitamin C, Vitamin D3, and zinc appear well aligned for comprehensive support of the immune system's primary defense mechanisms.

Meaningful dosages of these three core nutrients provide extensive coverage for systemic immune resilience.

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Impact
Highest effect
A Goal FitA- Strength of SupportA- CoverageA+ Formula Quality

This potent trio combines high-dose vitamin C, vitamin D3, and zinc for robust systemic and immune modulation. Each component is provided at a level that supports the body's natural antioxidant and inflammatory defenses.

Vitamin C, Vitamin D3, and Zinc Sulfate are the primary functional ingredients.

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Impact
Highest effect
A+ Goal FitB+ Strength of SupportB- CoverageA Formula Quality

Vitamin C and Zinc provide the essential nutrients for collagen synthesis and tissue repair.

These ingredients, alongside Vitamin D3, may contribute to the maintenance of overall skin resilience.

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Impact
Highest effect
A+ Goal FitB- Strength of SupportB+ CoverageA Formula Quality

Vitamin C, Vitamin D3, and Zinc provide foundational support for immune function and systemic antioxidant defenses. These nutrients appear well aligned with maintaining daily vitality and metabolic resilience.

Ingredients such as 1500mg of ascorbic acid and 5000 IU of cholecalciferol offer robust support for daily physiological needs. While the dosage levels are significant, the use of zinc sulfate and unbuffered Vitamin C may necessitate careful consumption for those with sensitive digestion.

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Impact
Highest effect
A Goal FitB+ Strength of SupportB+ CoverageA Formula Quality

This high-potency formula provides 40mg of zinc and a significant 5000 IU dose of vitamin D3 to support the follicular cycle and scalp health. Vitamin C is included at a robust 1500mg level to provide antioxidant protection and facilitate mineral metabolism.

Potent nutrient levels make this an effective option for individuals addressing hair thinning associated with nutritional gaps and systemic stress.

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Impact
High effect
A Goal FitB+ Strength of SupportD+ CoverageA- Formula Quality

Zinc and Vitamin D3 are included in therapeutic quantities to support the synthesis of hormones and the health of the endocrine system. Zinc is a primary catalyst in testosterone production, while Vitamin D3 serves as an essential pro-hormone cofactor.

This blend also provides antioxidant support through a high dose of Vitamin C, which may help mitigate oxidative stress in hormonal tissues. It serves as an effective foundational stack for maintaining the basic nutritional building blocks required for endocrine wellness.

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Ingredients

IngredientAmount per serving
Vitamin C (L-Ascorbic Acid)
1500 mg
Vitamin D3 (Cholecalciferol)
125 mcg
Zinc (Zinc Sulfate)
40 mg
Gluten Free Adults 18–50 Dairy Free
Report overview
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value
NutriBiotic Immunity provides a high concentration of Vitamin C in its pure L-ascorbic acid form, which is often favored for its direct utility. The formula is notable for its exceptional value, though the acidic nature may require caution for those with sensitive digestion.
F Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyB+ Value
Vitamin C and D3 accompany a 40 mg dose of zinc sulfate in this immunity-focused blend. Reaching the tolerable upper limit suggests this option is best used for specific, targeted needs.
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