Doctor's Best Multi-Vitamin Mineral Complex
vs
21st Century Sentry Senior Adults 50+
Supplement Comparison

  • Vitamin D: Doctor's Best Multi-Vitamin Mineral Complex has 60% more
  • Magnesium: Doctor's Best Multi-Vitamin Mineral Complex has 2.0× more
  • Vitamin C: Doctor's Best Multi-Vitamin Mineral Complex has 5.0× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 56 nutrients compared
Bar chart: per-serving label amounts and listed forms for Doctor's Best Multi-Vitamin Mineral Complex vs 21st Century Sentry Senior Adults 50+.

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Frequently asked questions

Which active ingredients does Doctor's Best Multi-Vitamin Mineral Complex have?

  • Vitamin A appears as Retinyl Palmitate
  • Vitamin C appears as Ascorbic Acid
  • Vitamin D appears as Vitashine Cholecalciferol (D3)
  • Vitamin E appears as d-Alpha Tocopheryl Acid Succinate
  • Vitamin E appears as Mixed Tocopherols
  • Vitamin K appears as Vitamin K2 MK-7 MenaQ7
  • Vitamin B1 (Thiamin) appears as Thiamin HCl
  • Vitamin B2 (Riboflavin) appears as Riboflavin
  • Vitamin B3 (Niacin) appears as Niacinamide and Niacin
  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B9 (Folate) appears as Quatrefolic (6S)-5-MTHF Glucosamine Salt
  • Vitamin B12 (Cobalamin) appears as Methylcobalamin
  • Vitamin B7 (Biotin) appears as D-Biotin
  • Vitamin B5 (Pantothenic Acid) appears as D-Calcium Pantothenate
  • Choline appears as Choline Bitartrate
  • Calcium appears as Calcium carbonate citrate malate bisglycinate chelate fructoborate
  • Iodine appears as Potassium Iodide
  • Magnesium appears as Magnesium Bisglycinate
  • Zinc appears as Zinc Citrate
  • Selenium appears as L-Selenomethionine
  • Copper appears as TRAACS Copper Bisglycinate (Albion)
  • Manganese appears as TRAACS Manganese Bisglycinate (Albion)
  • Chromium appears as Chromium Picolinate
  • Molybdenum appears as Molybdenum Glycinate
  • Potassium appears as Potassium Citrate
  • Boron appears as Bororganic Glycine
  • Silicon appears as Silicon Dioxide from Horsetail Extract
  • Lutein appears as Lutein Lutemax 2020 marigold flower extract
  • Zeaxanthin appears as Lutein Lutemax 2020 marigold flower extract

Which active ingredients does 21st Century Sentry Senior Adults 50+ have?

  • Vitamin A appears as Retinyl Acetate and Beta-Carotene
  • Vitamin C appears as Ascorbic Acid
  • Vitamin D appears as Cholecalciferol (D3)
  • Vitamin E appears as dl-Alpha Tocopheryl Acetate
  • Vitamin K appears as Vitamin K1 Phytonadione
  • Vitamin B1 (Thiamin) appears as Thiamin Mononitrate
  • Vitamin B2 (Riboflavin) appears as Riboflavin
  • Vitamin B3 (Niacin) appears as Niacinamide
  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B9 (Folate) appears as Folic Acid
  • Vitamin B12 (Cobalamin) appears as Cyanocobalamin
  • Vitamin B7 (Biotin)
  • Vitamin B5 (Pantothenic Acid) appears as D-Calcium Pantothenate
  • Calcium appears as Calcium Carbonate and Dicalcium Phosphate
  • Phosphorus appears as DiCalcium Phosphate
  • Iodine appears as Potassium Iodide
  • Magnesium appears as Magnesium Oxide
  • Zinc appears as Zinc Oxide
  • Selenium appears as Sodium Selenate
  • Copper appears as Copper Sulfate
  • Manganese appears as Manganese Sulfate
  • Chromium appears as Chromium Picolinate
  • Molybdenum appears as Sodium Molybdate
  • Chloride appears as Potassium Chloride
  • Potassium appears as Potassium Chloride
  • Lutein
  • Lycopene

Which categories do Doctor's Best Multi-Vitamin Mineral Complex and 21st Century Sentry Senior Adults 50+ belong to?

  • Multivitamin
  • Senior Formula

What health concerns do Doctor's Best Multi-Vitamin Mineral Complex and 21st Century Sentry Senior Adults 50+ address?

  • Heart & Cardiovascular Health
  • Immune System Support
  • Joint & Bone Health
  • Eye Health
  • General Health

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

  • Doctor's Best Multi-Vitamin Mineral Complex has the highest total amount of Vitamin D: 1600 IU per serving

Which product has a higher amount of Magnesium per serving?

  • Doctor's Best Multi-Vitamin Mineral Complex has the highest total amount of Magnesium: 100 mg per serving

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

  • Doctor's Best Multi-Vitamin Mineral Complex has the highest total amount of Vitamin C: 300 mg per serving

Which product has a higher amount of Zinc per serving?

  • Doctor's Best Multi-Vitamin Mineral Complex has the highest total amount of Zinc: 25 mg per serving

Which product has a higher amount of Calcium per serving?

  • 21st Century Sentry Senior Adults 50+ has the highest total amount of Calcium: 220 mg per serving

Which product has a higher amount of Vitamin B12 (Cobalamin) per serving?

  • Doctor's Best Multi-Vitamin Mineral Complex has the highest total amount of Vitamin B12 (Cobalamin): 1000 mcg per serving

Which product has a higher amount of Vitamin B9 (Folate) per serving?

  • 21st Century Sentry Senior Adults 50+ has the highest total amount of Vitamin B9 (Folate): 667 mcg DFE per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Doctor's Best Multi-Vitamin Mineral Complex: 3 capsules
    • 21st Century Sentry Senior Adults 50+: 1 tablet
  • Vitamin A
    • This supplement has 1500 mcg RAE
    • Recommended Dietary Allowance in men: 900 mcg RAE
    • Recommended Dietary Allowance in women: 700 mcg RAE
    • Tolerable Upper Intake Level: 3000 mcg RAE
  • 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 1600 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 110 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg
  • Vitamin K
    • This supplement has 80 mcg
    • Adequate Intake in men: 120 mcg
    • Adequate Intake in women: 90 mcg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B1 (Thiamin)
    • This supplement has 60 mg
    • Recommended Dietary Allowance in men: 1.2 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin A
    • This supplement has 750 mcg RAE
    • Recommended Dietary Allowance in men: 900 mcg RAE
    • Recommended Dietary Allowance in women: 700 mcg RAE
    • Tolerable Upper Intake Level: 3000 mcg RAE
  • Vitamin C
    • This supplement has 60 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 1000 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 22.5 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg
  • Vitamin K
    • This supplement has 30 mcg
    • Adequate Intake in men: 120 mcg
    • Adequate Intake in women: 90 mcg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B1 (Thiamin)
    • This supplement has 1.5 mg
    • Recommended Dietary Allowance in men: 1.2 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established

Last updated: February 15, 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).
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  • 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