Douglas Laboratories Ascorbplex 1000™ (Buffered Vitamin C)
vs
Metagenics Mg/K Aspartate
Supplement Comparison

  • Magnesium: Metagenics Mg/K Aspartate has 250× more
  • Potassium: Metagenics Mg/K Aspartate has 2.7× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 10 nutrients compared
Bar chart: per-serving label amounts and listed forms for Douglas Laboratories Ascorbplex 1000™ (Buffered Vitamin C) vs Metagenics Mg/K Aspartate.

Try the VIOscan dashboard demo for free

Build comparison charts in seconds – no signup or card needed

This is a free preview of the $9.99/month premium dashboard

Use the interactive demo with multivitamins samples

Try Free Demo

Frequently asked questions

Which active ingredients does Douglas Laboratories Ascorbplex 1000™ (Buffered Vitamin C) have?

  • Vitamin C appears as Calcium, Magnesium, Potassium Ascorbates and Ascorbic Acid
  • Calcium appears as Calcium Ascorbate and Carbonate Complex
  • Magnesium appears as Magnesium Ascorbate and Oxide Complex
  • Potassium appears as Potassium Ascorbate and Chloride Complex
  • Blend appears as Citrus Pectin and Citrus Bioflavonoids Complex

Which active ingredients does Metagenics Mg/K Aspartate have?

  • Magnesium appears as Magnesium Aspartate
  • Potassium appears as Potassium Aspartate

Which categories do Douglas Laboratories Ascorbplex 1000™ (Buffered Vitamin C) and Metagenics Mg/K Aspartate belong to?

  • Single Vitamin
  • Mineral Complex

What health concerns do Douglas Laboratories Ascorbplex 1000™ (Buffered Vitamin C) and Metagenics Mg/K Aspartate address?

  • Antioxidant Support
  • General Health
  • Immune System Support
  • Energy & Metabolism

Which product has a higher amount of Magnesium per serving?

  • Metagenics Mg/K Aspartate has the highest total amount of Magnesium: 100 mg per serving

Which product has a higher amount of Potassium per serving?

  • Metagenics Mg/K Aspartate has the highest total amount of Potassium: 160 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Douglas Laboratories Ascorbplex 1000™ (Buffered Vitamin C): 1 tablet
    • Metagenics Mg/K Aspartate: 2 tablets
  • Vitamin C
    • This supplement has 1000 mg
    • Recommended Dietary Allowance in men: 90 mg
    • Recommended Dietary Allowance in women: 75 mg
    • Tolerable Upper Intake Level: 2000 mg
  • Calcium
    • This supplement has 90 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Potassium
    • This supplement has 60 mg
    • Adequate Intake in men: 3400 mg
    • Adequate Intake in women: 2600 mg
    • Tolerable Upper Intake Level: Not established
  • Potassium
    • This supplement has 160 mg
    • Adequate Intake in men: 3400 mg
    • Adequate Intake in women: 2600 mg
    • Tolerable Upper Intake Level: Not established

Last updated: February 21, 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.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team