Metagenics Ultra Potent-C Vitamin C Powder
vs
Metagenics MetaGlycemX™
Supplement Comparison

  • Vitamin C: Metagenics Ultra Potent-C Vitamin C Powder has 3.6× more
  • Vitamin B3 (Niacin): Metagenics MetaGlycemX™ has 7.1% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 45 nutrients compared
Bar chart: per-serving label amounts and listed forms for Metagenics Ultra Potent-C Vitamin C Powder vs Metagenics MetaGlycemX™.

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Frequently asked questions

Which active ingredients does Metagenics Ultra Potent-C Vitamin C Powder have?

  • Vitamin C appears as Ascorbic Acid
  • Vitamin B3 (Niacin) appears as Nicotinic Acid
  • Calcium appears as Calcium Carbonate
  • Magnesium appears as Magnesium Oxide
  • Sodium appears as Sodium Chloride
  • L-Lysine appears as L-Lysine Monohydrochloride
  • Citrus Bioflavonoid Complex

Which active ingredients does Metagenics MetaGlycemX™ have?

  • Vitamin C appears as Ascorbic Acid
  • Vitamin D appears as Cholecalciferol (D3)
  • Vitamin E appears as d-Alpha Tocopheryl Succinate
  • Vitamin B1 (Thiamin) appears as Thiamin Mononitrate
  • Vitamin B2 (Riboflavin)
  • Vitamin B3 (Niacin) appears as Niacinamide
  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B9 (Folate) appears as Calcium-L-5-methyltetrahydrofolate
  • Vitamin B12 (Cobalamin) appears as Methylcobalamin
  • Vitamin B7 (Biotin)
  • Vitamin B5 (Pantothenic Acid) appears as D-Calcium Pantothenate
  • Zinc appears as Zinc Citrate
  • Selenium appears as L-Selenomethionine
  • Copper appears as Copper Lysinate HCl
  • Manganese appears as Manganese Citrate
  • Chromium appears as Chromium Polynicotinate
  • L-Carnosine
  • Alpha Lipoic Acid
  • Green Tea appears as Decaffeinated Green Tea Extract (Camellia sinensis leaf, standardized to 60% catechins and 40% EGCG)
  • Taurine
  • Cinnamon Extract appears as Chinese Cinnamon (Cinnamomum cassia) Bark Powder

Which categories do Metagenics Ultra Potent-C Vitamin C Powder and Metagenics MetaGlycemX™ belong to?

  • Single Vitamin
  • Metabolic Support Formula

What health concerns do Metagenics Ultra Potent-C Vitamin C Powder and Metagenics MetaGlycemX™ address?

  • Immune System Support
  • Blood Sugar Support

Which product has a higher amount of Vitamin C per serving?

  • Metagenics Ultra Potent-C Vitamin C Powder has the highest total amount of Vitamin C: 1088 mg per serving

Which product has a higher amount of Vitamin B3 (Niacin) per serving?

  • Metagenics MetaGlycemX™ has the highest total amount of Vitamin B3 (Niacin): 90 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Metagenics Ultra Potent-C Vitamin C Powder: 0.3 teaspoons
    • Metagenics MetaGlycemX™: 2 tablets
  • Vitamin C
    • This supplement has 1088 mg
    • Recommended Dietary Allowance in men: 90 mg
    • Recommended Dietary Allowance in women: 75 mg
    • Tolerable Upper Intake Level: 2000 mg
  • Vitamin B3 (Niacin)
    • This supplement has 84 mg
    • Recommended Dietary Allowance in men: 16 mg
    • Recommended Dietary Allowance in women: 14 mg
    • Tolerable Upper Intake Level: 35 mg
  • Calcium
    • This supplement has 50 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Sodium
    • This supplement has 15 mg
    • Adequate Intake in men: 1500 mg
    • Adequate Intake in women: 1500 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin C
    • This supplement has 300 mg
    • Recommended Dietary Allowance in men: 90 mg
    • Recommended Dietary Allowance in women: 75 mg
    • Tolerable Upper Intake Level: 2000 mg
  • Vitamin D
    • This supplement has 200 IU
    • Recommended Dietary Allowance in men: 600 IU
    • Recommended Dietary Allowance in women: 600 IU
    • Tolerable Upper Intake Level: 4000 IU
  • Vitamin E
    • This supplement has 134 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg
  • Vitamin B1 (Thiamin)
    • This supplement has 15 mg
    • Recommended Dietary Allowance in men: 1.2 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B2 (Riboflavin)
    • This supplement has 9 mg
    • Recommended Dietary Allowance in men: 1.3 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B3 (Niacin)
    • This supplement has 90 mg
    • Recommended Dietary Allowance in men: 16 mg
    • Recommended Dietary Allowance in women: 14 mg
    • Tolerable Upper Intake Level: 35 mg

Last updated: February 9, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
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  • Author: VIOscan Research Team