Full Spectrum Mineral Caps

Full Spectrum Mineral Caps

NOW4.7 (1,807 ratings)
Format:Capsule Quantity: 240 Capsule(s) · 120 servings
Goals
$23.10 $0.19 per serving

Product analysis

66 out of 100

Full Spectrum Mineral Caps may help fill dietary gaps that affect normal energy use and bone maintenance. Unclear proportions in the magnesium blend make it harder to judge how much of the better-absorbed form you receive.

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

Nutrient Quality57

Several trace minerals use forms with favorable absorption characteristics. The magnesium mix has undisclosed proportions, so its absorption cannot be confidently judged.

Ingredient Transparency80

All nutrient amounts and forms are identified. The missing split between magnesium sources still prevents judging how much each form contributes.

Value For Money62

The serving cost is favorable for several trace minerals and calcium. The magnesium blend offers weaker value because its source proportions are unclear.

Customer Satisfaction84

Customer satisfaction is high across a substantial review base. Ratings do not establish the blend's nutritional effects.

Product Focus55

The clearest role is filling low mineral intake to support normal bone and energy functions. Broader claims for testosterone, stress or detox remain conditional and do not establish added benefits once nutrient needs are met.

Format
Capsule
Container
240 Capsule(s)
Per serving
$0.19
Customer rating
4.7 · 1,807 ratings
Report analysis

Goals

Impact
High effect
B- Ingredient FitB- PathwaysA- EvidenceA+ Formulation Logic
Vitamin D · 5 mcgMagnesium · 250 mgSelenium · 50 mcgZinc · 7.5 mg
Study evidence
Magnesium Supportive 114 studies
Selenium Supportive 70 studies
Vitamin D Supportive 115 studies
Zinc Supportive 60 studies
Energy
Impact
Moderate effect
D+ Ingredient FitF PathwaysA- EvidenceA+ Formulation Logic
Iodine · 112.5 mcgVitamin D · 5 mcgMagnesium · 250 mgPotassium · 50 mg
Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies
Potassium Supportive 2 studies
Vitamin D Supportive 32 studies
Impact
High effect
C- Ingredient FitC+ PathwaysA+ EvidenceA+ Formulation Logic
Magnesium · 250 mgCalcium · 250 mgVitamin D · 5 mcgCopper · 1 mgManganese · 2.5 mgZinc · 7.5 mg
Study evidence
Calcium Supportive 144 studies
Copper Disputed 20 studies
Magnesium Supportive 48 studies
Manganese Adverse 12 studies
Potassium Supportive 39 studies
Vitamin D Supportive 202 studies
Zinc Supportive 33 studies
Impact
Moderate effect
D- Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin D · 5 mcgMagnesium · 250 mg
Study evidence
Magnesium Supportive 13 studies
Vitamin D Supportive 41 studies
Zinc Supportive 9 studies
Impact
Moderate effect
F Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Zinc · 7.5 mgVitamin D · 5 mcgMagnesium · 250 mg
Study evidence
Magnesium Supportive 50 studies
Vitamin D Supportive 49 studies
Zinc Supportive 130 studies
Impact
High effect
D Ingredient FitC PathwaysA EvidenceA+ Formulation Logic
Magnesium · 250 mgZinc · 7.5 mgVitamin D · 5 mcg
Study evidence
Magnesium Disputed 5 studies
Selenium No effect 16 studies
Vitamin D Supportive 56 studies
Zinc Disputed 7 studies

Ingredients

IngredientAmount per servingScore
Vitamin D3 (Cholecalciferol)
5 mcg
Calcium (Calcium Carbonate)
250 mg 72
Iodine (Potassium Iodide)
112.5 mcg 88
Magnesium (Aquamin Seaweed Derived Minerals, Magnesium Citrate, Magnesium Oxide)
250 mg 50
Zinc (Zinc Bisglycinate)
7.5 mg
Selenium (L-Selenomethionine)
50 mcg
Copper (Copper Bisglycinate)
1 mg 84
Manganese (Manganese Bisglycinate)
2.5 mg 94
Chromium (Chromium Picolinate)
100 mcg 60
Molybdenum (Sodium Molybdate)
50 mcg 64
Potassium (Potassium Chloride)
50 mg
Gluten Free Adults 18–50 Kosher Dairy Free
Report overview
A+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value
Each serving provides 2.5 mg of manganese at a low cost per serving. The manganese is supplied as manganese bisglycinate.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

The manganese is supplied as manganese bisglycinate.
Manganese Chemical Form
The manganese is supplied as manganese bisglycinate.

Dose, Safety & Label Transparency86

Each serving provides 2.5 mg of manganese. The manganese amount is stated separately from its source.
Manganese Dosage Efficacy & Safety
Each serving provides 2.5 mg of manganese.
Elemental Weight Disclosure
The manganese amount is stated separately from its source.

Value100

The cost per serving is low.
Price per Serving vs. Median
The cost per serving is low.
A+ Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyA+ Value
Each serving provides 112.5 mcg of iodine per serving, at a low cost per serving. The iodine comes from potassium iodide.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

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

Dose, Safety & Label Transparency70

Each serving provides 112.5 mcg of iodine per serving. The amount is at or below the stated adult upper intake level.
Dosage Efficacy for Daily Support
Each serving provides 112.5 mcg of iodine per serving.
Dosage Safety & Upper Limits
The amount is at or below the stated adult upper intake level.
Elemental Iodine Transparency
The iodine amount is stated.

Value100

The cost per serving is low.
Price Per Effective Serving
The cost per serving is low.
A+ Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyB+ Value
The serving provides 1 mg of copper and has a moderate cost per serving. It uses Copper Bisglycinate, an amino acid chelate. The serving also provides 7.5 mg of zinc, alongside its copper.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

It uses Copper Bisglycinate, an amino acid chelate. The label states 1 mg of elemental copper and names its source.
Copper Form Bioavailability
It uses Copper Bisglycinate, an amino acid chelate.
Elemental Copper Labeling Clarity
The label states 1 mg of elemental copper and names its source.

Dose, Safety & Label Transparency71

The serving supplies 1 mg of copper, a clear amount. The serving also provides 7.5 mg of zinc, alongside its copper.
Copper Dosage Safety & Efficacy
The selected serving provides 1 mg of copper, a clear amount.
Zinc-to-Copper Balance
The serving also provides 7.5 mg of zinc, alongside its copper.

Value80

The cost per serving is moderate.
Price Per Serving Efficiency
The cost per serving is moderate.
Report alternatives

Sources

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

  1. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  2. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  3. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  4. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  5. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  6. The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
    Ju Y; Xiong W; Pang Y; Chen Z; Hou J; Zheng S; Li Z; Liu T; Xia H; Xia M; Zhong Y; Li J; Jiang X · Biological trace element research · 2026
    Scoping review18 studies pooledBone Health forCopper
  7. Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
    Chen M; Jia L; Gao R · Frontiers in nutrition · 2024
    Cohort study5,286 participantsBone Health forCopper
  8. Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
    Hu M; Wang Z; Li C; Zheng Y; Hu J · Medicine · 2025
    Cross-sectional studyBone Health forCopper
  9. The association between dietary mineral intake and bone mineral density: a cross-sectional study.
    Wei M; Wei J; Huang S · Journal of health, population, and nutrition · 2025
    Cross-sectional study11,520 participantsBone Health forCopper
  10. Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
    Cui A; Yan J; Li H; Fan Z; Wei X; Wang H; Zhuang Y · PloS one · 2024
    Cross-sectional study6,965 participantsBone Health forCopper
  11. Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
    Dominguez LJ; Veronese N; Ciriminna S; Pérez-Albela JL; Vásquez-López VF; Rodas-Regalado S; Di Bella G; Parisi A; Tagliaferri F; Barbagallo M · Nutrients · 2023
    Meta-analysis119,755 participants4 studies pooledBone Health forMagnesium
  12. Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
    Hung CH; Kwok YC; Yip J; Wong HH; Leung YY · Craniomaxillofacial trauma & reconstruction · 2025
    Systematic review386 participants8 studies pooledBone Health forMagnesium
  13. Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
    Zhao D; Huang S; Lu F; Wang B; Yang L; Qin L; Yang K; Li Y; Li W; Wang W; Tian S; Zhang X; Gao W; Wang Z; Zhang Y; Xie X; Wang J; Li J · Biomaterials · 2016
    Randomized trial48 participantsBone Health forMagnesium
  14. An update on magnesium and bone health.
    Rondanelli M; Faliva MA; Tartara A; Gasparri C; Perna S; Infantino V; Riva A; Petrangolini G; Peroni G · Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2022
    Narrative reviewBone Health forMagnesium
  15. Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
    Wang B; Tan X; Yao X; Zhu Z · Endocrine connections · 2025
    Cross-sectional study1,343 participantsBone Health forMagnesium
  16. Risk of Environmental Chemicals on Bone Fractures Is Independent of Low Bone Mass in US Adults: Insights from 2017 to 2018 NHANES.
    Ling R; Ai Y; Chen C; Zhang J; Zou Z; Cheng S; Li C; Li X; Wang B · Metabolites · 2023
    Cross-sectional study2,640 participantsBone Health forManganese
  17. The Manganese-Bone Connection: Investigating the Role of Manganese in Bone Health.
    Taskozhina G; Batyrova G; Umarova G; Issanguzhina Z; Kereyeva N · Journal of clinical medicine · 2024
    Narrative reviewBone Health forManganese
  18. Associations of multiple metals with bone mineral density: A population-based study in US adults.
    Wei MH; Cui Y; Zhou HL; Song WJ; Di DS; Zhang RY; Huang Q; Liu JA; Wang Q · Chemosphere · 2021
    Cross-sectional studyBone Health forManganese
  19. Sex-specific associations of urinary mixed-metal concentrations with femoral bone mineral density among older people: an NHANES (2017-2020) analysis.
    Li H; Li G; Yi M; Zhou J; Deng Y; Huang Y; He S; Meng X; Liu L · Frontiers in public health · 2024
    Cross-sectional study31 participantsBone Health forManganese
  20. Relationship between blood manganese and bone mineral density and bone mineral content in adults: A population-based cross-sectional study.
    Wang C; Zhu Y; Long H; Ou M; Zhao S · PloS one · 2022
    Cross-sectional study9,732 participantsBone Health forManganese