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Centrum Silver Women 50+

GSK
4.8
★ ★ ★ ★ ★
(14149 ratings)
Iodine 150 mcg
Calcium 300 mg
Chloride 72 mg
Iron 8 mg
Manganese 2.3 mg
Molybdenum 50 mcg
Chromium 52 mcg
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Score78
The broad one-tablet formula provides useful maintenance amounts at favorable cost, but most chemical forms are not disclosed. Vitamin K can counter warfarin, so people using that anticoagulant need a consistent intake.
How scoring works
Quantity:200 Tablet(s) • (200 servings)
Goals:
Energy

Score 78

The broad one-tablet formula provides useful maintenance amounts at favorable cost, but most chemical forms are not disclosed. Vitamin K can counter warfarin, so people using that anticoagulant need a consistent intake.
How scoring works
$15.43($0.07 per serving)
Vitacost
$ 20.13
Walmart
$ 15.43
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Analysis

The broad one-tablet formula provides useful maintenance amounts at favorable cost, but most chemical forms are not disclosed. Vitamin K can counter warfarin, so people using that anticoagulant need a consistent intake.

Missing source identity leaves both bioavailability and marine-purity risk uncertain. The 150 mcg amount matches standard daily support needs and remains below the adult upper limit.

B vitamins, iodine, iron, and magnesium support normal energy metabolism and oxygen transport. The broad formula is best viewed as nutritional maintenance for older women.

Who is it for
  • Adults focused on energy
  • Adults focused on detoxification
  • Adults focused on mental focus
Best for
  • Iodine supplementation
  • Chloride supplementation
  • Calcium supplementation

Pros

  • Provides a disclosed 25.00mcg of vitamin d3
  • Provides a disclosed 50.00mcg of vitamin b12
  • Provides a disclosed 50.00mcg of vitamin k

Cons

  • Many nutrient forms are standard or undisclosed
  • Calcium and magnesium are modest
  • Small carotenoid additions provide limited depth

Warnings

  • Vitamin K can oppose warfarin and related medicines, so intake should remain consistent and medically coordinated.
  • The broad formula should not be stacked casually with another multivitamin.
  • The listed iron amount may be unnecessary for people with adequate iron stores or those advised to avoid supplemental iron.

Nutrient quality

73 High impact

Most vitamin and mineral chemical forms are undisclosed, preventing a reliable absorption assessment. Many vitamins and trace minerals reach useful maintenance amounts, while calcium, magnesium, and specialty actives are modest.

.

Ingredient transparency

72 High impact

All meaningful active amounts are clearly disclosed. The supplied data does not include a complete inactive ingredient list.

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Customer satisfaction

73 High impact

The aggregate satisfaction measure is supported by adequate volume. Missing feedback themes leave recurring complaints and purpose fit uncertain.

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Value for money

95 Highest impact

The price is very well matched to the formula quality and dose. Each serving provides excellent cost efficiency.

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Report analysis

Goals

Impact
High effect
B Goal FitD Strength of SupportC CoverageB+ Formula Quality
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 5 mgMagnesium · 100 mgRiboflavin · 1.1 mgThiamin · 1.1 mgVitamin B12 · 50 mcgIron · 8 mgPotassium · 80 mg

B vitamins, iodine, iron, and magnesium support normal energy metabolism and oxygen transport. The broad formula is best viewed as nutritional maintenance for older women.

Iron is below the preferred focused amount, and chemical forms for key minerals are missing. No stimulant, adaptogen, or high-dose mitochondrial active provides a more noticeable energy effect.

Study evidence
Iodine Adverse 3 studies
Iron Supportive 74 studies
Magnesium Supportive 4 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
1050 mcg
Vitamin C
100 mg
Vitamin D3
25 mcg
Vitamin E
15.8 mg
Vitamin K
50 mcg
Thiamine
1.1 mg
Riboflavin
1.1 mg
Niacin
14 mg
Vitamin B6
5 mg
Folate
667 mcg DFE
Vitamin B12
50 mcg
Biotin
30 mcg
Pantothenic Acid
5 mg
Calcium
300 mg
Iron
8 mg
Phosphorus
20 mg
Iodine
150 mcg
Magnesium
100 mg
Zinc
15 mg
Selenium
22 mcg
Copper
0.5 mg
Manganese
2.3 mg
Chromium
52 mcg
Molybdenum
50 mcg
Chloride
72 mg
Potassium
80 mg
Lutein
300 mcg
Gluten Free Women 50+
Report overview
Iodine · 150 mcg OverallScore77
D- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Missing source identity leaves both bioavailability and marine-purity risk uncertain. The 150 mcg amount matches standard daily support needs and remains below the adult upper limit. Very low serving cost partly offsets the undisclosed iodine source.

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

The chloride amount is moderate and clearly disclosed, making it a useful part of a broader multivitamin. The source salt is not identified, which leaves form quality uncertain. A single tablet is convenient and inexpensive per serving.

Calcium · 300 mg OverallScore56
F Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyA+ Value

The multivitamin provides a useful calcium amount at an absorption-efficient serving size. Missing chemical-form disclosure prevents comparison with citrate or chelated calcium. Very low serving cost supports excellent value for basic supplementation.

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Sources

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

  1. The Effect of Parenteral or Oral Iron Supplementation on Fatigue, Sleep, Quality of Life and Restless Legs Syndrome in Iron-Deficient Blood Donors: A Secondary Analysis of the IronWoMan RCT.
    Macher S; Herster C; Holter M; Moritz M; Matzhold EM; Stojakovic T; Pieber TR; Schlenke P; Drexler C; Amrein K · Nutrients · 2021
    Randomized trial176 participantsEnergy forIron
  2. Effect of iron therapy on fatigue symptoms in non-anaemic iron deficient women of reproductive age- A Randomized Controlled Trial.
    Sultana N; Bajwa FA; Sikandar MZ; Haider MM; Majeed T · JPMA. The Journal of the Pakistan Medical Association · 2026
    Randomized trial164 participantsEnergy forIron
  3. Clinical evaluation of iron treatment efficiency among non-anemic but iron-deficient female blood donors: a randomized controlled trial.
    Waldvogel S; Pedrazzini B; Vaucher P; Bize R; Cornuz J; Tissot JD; Favrat B · BMC medicine · 2012
    Randomized trial154 participantsEnergy forIron
  4. Intravenous iron for the treatment of fatigue in nonanemic, premenopausal women with low serum ferritin concentration.
    Krayenbuehl PA; Battegay E; Breymann C; Furrer J; Schulthess G · Blood · 2011
    Randomized trial90 participantsEnergy forIron
  5. 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
  6. 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
  7. 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
  8. Large-dose intravenous ferric carboxymaltose injection for iron deficiency anemia in heavy uterine bleeding: a randomized, controlled trial.
    Van Wyck DB; Mangione A; Morrison J; Hadley PE; Jehle JA; Goodnough LT · Transfusion · 2010
    Randomized trial477 participantsEnergy forIron
  9. Ferric carboxymaltose vs. oral iron in the treatment of pregnant women with iron deficiency anemia: an international, open-label, randomized controlled trial (FER-ASAP).
    Breymann C; Milman N; Mezzacasa A; Bernard R; Dudenhausen J; FER-ASAP investigators · Journal of perinatal medicine · 2018
    Randomized trial252 participantsEnergy forIron
  10. Intravenous iron isomaltoside treatment of women suffering from severe fatigue after postpartum hemorrhage.
    Holm C; Thomsen LL; Langhoff-Roos J · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Randomized trial85 participantsEnergy forIron
  11. 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
  12. 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
  13. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  14. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium