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Centrum Silver Adults 50+

Centrum
4.8
★ ★ ★ ★ ★
(634 ratings)
Iodine 150 mcg
Calcium 220 mg
Chloride 72 mg
Manganese 2.3 mg
Copper 0.5 mg
Molybdenum 45 mcg
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Score74
A practical senior multivitamin with broad maintenance coverage. Weak form transparency and small specialty amounts limit depth.
How scoring works
Quantity:80 Tablet(s) • (80 servings)
Goals:
Energy

Score 74

A practical senior multivitamin with broad maintenance coverage. Weak form transparency and small specialty amounts limit depth.
How scoring works
$10.97($0.13 per serving)
Vitacost
$ 11.53
iHerb
$ 10.97
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Analysis

A wide vitamin and mineral profile covers common maintenance needs, including vitamin D3, iodine, B vitamins, zinc, selenium, and copper. The formula supports normal energy metabolism without providing an acute energy pathway.

Many chemical forms are not identified in the supplied data, which limits comparison of absorption and ingredient quality. Calcium, magnesium, lutein, and lycopene are included at amounts too small for focused bone or vision use.

The product fits adults over 50 who want simple once-daily coverage. People seeking targeted mineral correction, macular support, or high-quality coenzyme forms may prefer a more specialized formula.

Who is it for
  • Adults over 50
  • Once-daily multivitamin users
  • People seeking broad nutritional maintenance
Best for
  • General vitamin and mineral coverage
  • Normal energy metabolism
  • Simple daily use

Pros

  • Broad nutrient range
  • Includes vitamin D3
  • Once-daily tablet
  • Practical serving cost

Cons

  • Many chemical forms are unspecified
  • Low calcium and magnesium
  • Small lutein and lycopene amounts
  • Not a targeted energy formula

Warnings

  • Vitamin K may interfere with warfarin dose control and requires consistent intake coordinated with the prescriber.
  • Iodine use may need review for thyroid disorders or thyroid medicines.
  • B vitamins support energy metabolism mainly when intake is inadequate and should not be expected to act like stimulants.

Nutrient quality

65 Moderate impact

Most vitamins and minerals are listed without chemical forms, leaving bioavailability uncertain. The amounts generally suit maintenance, while calcium, magnesium, and several trace minerals are modest.

Ingredient transparency

76 High impact

Every listed active has a specific amount. Generic nutrient names omit the forms needed to assess absorption and quality.

Customer satisfaction

69 High impact

The aggregate rating is strong and the available feedback volume gives it useful statistical support. No specific review comments are supplied to assess recurring benefits or complaints.

Value for money

86 Highest impact

Low routine cost and broad coverage support value despite weak form disclosure. Very small carotenoid additions contribute limited practical value.

Report analysis

Goals

Energy
Impact
High effect
A- Goal FitC- Strength of SupportC+ CoverageA- Formula Quality
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 10 mgMagnesium · 50 mgRiboflavin · 1.7 mgThiamin · 1.5 mgVitamin B12 · 25 mcgPotassium · 80 mg

B vitamins support metabolic energy, while iodine supports thyroid-driven metabolism. The broad nutrient profile may help when poor intake contributes to fatigue.

B12 and magnesium remain below the preferred goal-specific amounts, and chemical forms are largely undisclosed. The formula gives general nutritional coverage but no acute alertness, mitochondrial active, or adaptogen pathway.

Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
750 mcg
Vitamin C
60 mg
Vitamin D3
25 mcg
Vitamin E
22.5 mg
Vitamin K
30 mcg
Thiamine
1.5 mg
Riboflavin
1.7 mg
Niacin
20 mg
Vitamin B6
3 mg
Folate
667 mcg DFE
Vitamin B12
25 mcg
Biotin
30 mcg
Pantothenic Acid
10 mg
Calcium
220 mg
Phosphorus
20 mg
Iodine
150 mcg
Magnesium
50 mg
Zinc
11 mg
Selenium
19 mcg
Copper
0.5 mg
Manganese
2.3 mg
Chromium
50 mcg
Molybdenum
45 mcg
Chloride
72 mg
Potassium
80 mg
Lutein
250 mcg
Lycopene
300 mcg
Gluten Free Seniors 50+
Report overview
Iodine · 150 mcg OverallScore75
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
The iodine chemical form or source is not identified, limiting confidence in bioavailability. 150 mcg fits the optimal daily-support range. The label clearly states the active iodine amount. Per-serving cost falls in the very low-cost tier without a qualifying cofactor adjustment.
Calcium · 220 mg OverallScore59
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

The multivitamin provides a moderate calcium amount but does not disclose its chemical form. Vitamin D3 supports calcium use, while the dose remains below the optimal single-serving range. Very low cost gives the broad formula excellent value despite limited calcium detail.

Chloride · 72 mg OverallScore56
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyA+ Value

The 72 mg chloride serving provides only moderate electrolyte support. The exact amount is disclosed, but the missing salt source limits transparency and quality assessment. The broad multivitamin formula offers good serving value, but it is not designed for substantial electrolyte replacement.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  2. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  3. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  4. Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial.
    Hausenblas HA; Lynch T; Hooper S; Shrestha A; Rosendale D; Gu J · Sleep medicine: X · 2025
    Randomized trial80 participantsEnergy forMagnesium
  5. Total magnesium intake and risk of frailty in older women.
    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsEnergy forMagnesium
  6. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  7. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium