Sentry Men

Sentry Men

21st Century4.8 (6,360 ratings)
Format:Tablet Quantity: 120 Tablet(s) · 120 servings
Goals
$9.99 $0.08 per serving

Product analysis

59 out of 100

Sentry Men provides inexpensive, broad nutritional coverage for normal energy use and immune function when dietary intake is low.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality39

Mineral forms vary, with favorable iodine and molybdenum alongside less favorable copper sulfate and sodium selenate. Several other quality comparisons remain uncertain.

Ingredient Transparency77

Amounts and most ingredient forms are stated. The proportions of the vitamin A and calcium mixtures are missing, preventing precise comparison.

Value For Money57

The serving is inexpensive, with favorable cost comparisons for several minerals. Many other ingredient contributions remain uncertain on value.

Customer Satisfaction92

Customer feedback is very positive across several thousand ratings. That gives a broad picture of satisfaction without establishing the proposed health benefits.

Product Focus42

The broad nutrient lineup fits general dietary support. Its clearest benefits involve filling gaps, rather than providing extra energy, hair growth or toxin clearance when needs are met.

Format
Tablet
Container
120 Tablet(s)
Per serving
$0.08
Customer rating
4.8 · 6,360 ratings
Report analysis

Goals

Everyday Health
Impact
Highest effect
B Ingredient FitA+ PathwaysA- EvidenceA+ Formulation Logic
Folate · 333 mcg DFEVitamin B12 · 6 mcgVitamin D · 25 mcgMagnesium · 100 mgVitamin K · 60 mcgSelenium · 100 mcgZinc · 11 mgVitamin C · 90 mg
Study evidence
Folate Supportive 80 studies
Magnesium Supportive 114 studies
Selenium Supportive 70 studies
Vitamin C Supportive 56 studies
Vitamin D Supportive 115 studies
Vitamin K Supportive 34 studies
Zinc Supportive 60 studies
Immunity
Impact
Highest effect
C- Ingredient FitA+ PathwaysA+ EvidenceA+ Formulation Logic
Magnesium · 100 mgVitamin C · 90 mgZinc · 11 mgVitamin A · 1050 mcgVitamin D · 25 mcgSelenium · 100 mcg
Study evidence
Iron Supportive 23 studies
Magnesium Supportive 8 studies
Selenium Mixed 37 studies
Vitamin A Supportive 107 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Vitamin E Supportive 21 studies
Zinc Supportive 73 studies
Impact
Moderate effect
D- Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Folate · 333 mcg DFEVitamin B12 · 6 mcgVitamin B6 · 2 mgMolybdenum · 50 mcgSelenium · 100 mcgMagnesium · 100 mgVitamin E · 20.3 mgZinc · 11 mgVitamin C · 90 mgRiboflavin · 1.3 mg
Study evidence
Folate Supportive 16 studies
Magnesium Supportive 19 studies
Selenium Supportive 10 studies
Vitamin C Supportive 9 studies
Vitamin E Supportive 23 studies
Zinc Supportive 30 studies
Impact
Moderate effect
C- Ingredient FitF PathwaysA EvidenceA+ Formulation Logic
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 15 mgMagnesium · 100 mgRiboflavin · 1.3 mgThiamin · 1.2 mgVitamin B12 · 6 mcgIron · 8 mgPotassium · 80 mg
Study evidence
Iodine Adverse 3 studies
Iron Supportive 74 studies
Magnesium Supportive 4 studies
Potassium Supportive 2 studies
Thiamin Disputed 12 studies
Vitamin D Supportive 32 studies
Hair Health
Impact
High effect
C- Ingredient FitC- PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 40 mcgVitamin D · 25 mcgZinc · 11 mgIron · 8 mgVitamin C · 90 mg
Study evidence
Biotin Supportive 4 studies
Copper Adverse 4 studies
Folate Mixed 15 studies
Iodine No effect 1 study
Iron Disputed 25 studies
Niacin Disputed 2 studies
Selenium Disputed 7 studies
Vitamin A Disputed 13 studies
Vitamin D Disputed 34 studies
Vitamin E No effect 3 studies
Zinc Supportive 22 studies

Ingredients

IngredientAmount per servingScore
Vitamin A (Beta-Carotene, Vitamin A Acetate)
1050 mcg
Vitamin C (Ascorbic Acid)
90 mg
Vitamin D3 (Cholecalciferol)
25 mcg
Vitamin E (DL-Alpha-Tocopheryl Acetate)
20.3 mg
Vitamin K (Phytonadione)
60 mcg 42
Thiamine (Thiamine Mononitrate)
1.2 mg
Riboflavin
1.3 mg
Niacin (Niacinamide)
16 mg
Vitamin B6 (Pyridoxine Hydrochloride)
2 mg
Folate
333 mcg DFE
Vitamin B12 (Cyanocobalamin)
6 mcg
Biotin
40 mcg
Pantothenic Acid (D-Calcium Pantothenate)
15 mg
Calcium (Calcium Carbonate, Dicalcium Phosphate)
210 mg 63
Iron (Ferrous Fumarate)
8 mg 61
Phosphorus (Dicalcium Phosphate)
20 mg
Iodine (Potassium Iodide)
150 mcg 100
Magnesium (Magnesium Oxide)
100 mg
Zinc (Zinc Oxide)
11 mg
Selenium (Sodium Selenate)
100 mcg 64
Copper (Copper Sulfate)
0.9 mg 69
Manganese (Manganese Sulfate)
2.3 mg 70
Chromium (Chromium Picolinate)
35 mcg
Molybdenum (Sodium Molybdate)
50 mcg 64
Chloride (Potassium Chloride)
72 mg 81
Potassium (Potassium Chloride)
80 mg
Lycopene
600 mcg
Gluten Free Men 18–50
Report overview
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
The serving provides 150 mcg of iodine at a low cost per serving. The iodine comes from potassium iodide. The stated iodine amount supports daily intake.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

The iodine comes from potassium iodide. No marine iodine source is indicated, so marine sourcing concerns do not apply.
Iodine Form & Bioavailability
The iodine comes from potassium iodide.
Marine Source Purity & Sourcing
No marine iodine source is indicated, so marine sourcing concerns do not apply.

Dose, Safety & Label Transparency100

It provides 150 mcg of iodine per serving for daily support. The source is also stated.
Dosage Efficacy for Daily Support
It provides 150 mcg of iodine per serving for daily support.
Dosage Safety & Upper Limits
The 150 mcg serving is below the stated adult upper intake level.
Elemental Iodine Transparency
The iodine amount and source are stated.

Value100

The cost per serving is low.
Price Per Effective Serving
The cost per serving is low.
C+ Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyA+ Value
A serving supplies 210 mg of calcium, an amount for general supplementation, at a low cost per serving. The sources are calcium carbonate and dicalcium phosphate, but their proportions are unknown. An artificial additive is listed.
How this ingredient is rated

Active Ingredient Quality & Bioavailability65

The calcium amount is stated. The sources are calcium carbonate and dicalcium phosphate, but their proportions are unknown.
Calcium Form & Absorption Potential
The sources are calcium carbonate and dicalcium phosphate, but their proportions are unknown.
Elemental Calcium Transparency
The label states 210 mg of calcium per serving.

Dose, Safety & Label Transparency42

The serving provides 210 mg of calcium. An artificial additive is listed.
Absorption-Optimized Serving Dose
The 210 mg serving is an amount for general supplementation.
Formulation Purity & Additives
An artificial additive is listed.

Value100

The cost per serving is low.
Price Per Serving Efficiency
The cost per serving is low.
B+ Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyA+ Value
A serving provides a moderate amount of chloride, 72 mg, at a low cost per serving. The named chloride source is potassium chloride.
How this ingredient is rated

Active Ingredient Quality & Bioavailability80

The named chloride source is potassium chloride.
Chloride source quality
The named chloride source is potassium chloride.

Dose, Safety & Label Transparency72

The serving provides 72 mg of chloride. The label gives both the chloride amount and its source.
Chloride amount per serving
The serving provides a moderate chloride amount of 72 mg.
Amount and source disclosure
The label gives both the chloride amount and its source.

Value100

The cost per serving is low.
Price per serving
The cost per serving is low.
Report alternatives

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. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  12. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  13. [Efficacy of potassium N-acetylaminosuccinate (Cogitum) in the treatment of asthenic syndrome: results of double-blind placebo-controlled trial].
    Esin RG; Khayrullin IK; Esin OR; Fatykhova AF; Gismatullina EI; Isaeva YN · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2023
    Randomized trial37 participantsEnergy forPotassium
  14. Human resting energy expenditure in relation to dietary potassium.
    Dériaz O; Thériault G; Lavallée N; Fournier G; Nadeau A; Bouchard C · The American journal of clinical nutrition · 1991
    Randomized trial8 participantsEnergy forPotassium
  15. Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
    Fouad S; Ibrahim GE; Hussein AMS; Ibrahim FA; El Gendy A · Heliyon · 2021
    Non-randomized trialEnergy forRiboflavin
  16. Vitamin B status in patients with chronic fatigue syndrome.
    Heap LC; Peters TJ; Wessely S · Journal of the Royal Society of Medicine · 1999
    Case-control study30 participantsEnergy forRiboflavin
  17. B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
    Bager P; Hvas CL; Hansen MM; Ueland P; Dahlerup JF · Molecular medicine (Cambridge, Mass.) · 2023
    Observational studyEnergy forRiboflavin
  18. Metabolic features of chronic fatigue syndrome.
    Naviaux RK; Naviaux JC; Li K; Bright AT; Alaynick WA; Wang L; Baxter A; Nathan N; Anderson W; Gordon E · Proceedings of the National Academy of Sciences of the United States of America · 2024
    Case-control study84 participantsEnergy forRiboflavin
  19. Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
    Bregje Jaeger, Nina N Stolwijk, Femke Aaldering, Charlotte A Ruys, Marije Smits, Nicole I Wolf, Carla E M Hollak, Annet M Bosch · Journal of Inherited Metabolic Disease · 2026
    Systematic review381 studies pooledEnergy forRiboflavin
  20. Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
    Smidt LJ; Cremin FM; Grivetti LE; Clifford AJ · Journal of gerontology · 1991
    Randomized trial80 participantsEnergy forThiamin