Daily One Caps without Iron

Daily One Caps without Iron

Twinlab4.5 (330 ratings)
Format:Capsule Quantity: 180 Capsule(s) · 180 servings
Goals
$28.48 $0.15 per serving

Product analysis

56 out of 100

Daily One Caps without Iron provides broad vitamin and mineral support to help fill dietary gaps without adding iron. Unclear forms and mixture proportions make parts of the mix harder to compare.

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

Nutrient Quality46

Several forms are suitable, including iodine and vitamin B5, but the selenium and chromium choices are less favourable. Missing forms and uncertain quality for other nutrients leave an uneven picture.

Ingredient Transparency74

All listed amounts and most forms are disclosed. Some forms and mixed-source proportions are missing, so the totals do not always show exactly which preparations you are getting.

Value For Money58

Several nutrients offer good value at the full serving cost, while vitamin B5 and choline are less economical. Uncertain value for other ingredients makes the broad mix harder to judge as a whole.

Customer Satisfaction72

Customer feedback is generally positive. A few hundred ratings provide useful context but leave more uncertainty about typical experiences than a larger review base would.

Product Focus37

Broad nutritional coverage is the main strength when diet leaves gaps. The many actives and proposed uses make it less targeted, without establishing additional benefits when nutrient needs are met.

Format
Capsule
Container
180 Capsule(s)
Per serving
$0.15
Customer rating
4.5 · 330 ratings
Report analysis

Goals

Immunity
Impact
Highest effect
C+ Ingredient FitA+ PathwaysA+ EvidenceA+ Formulation Logic
Magnesium · 7.2 mgVitamin C · 150 mgZinc · 15 mgVitamin A · 3000 mcg RAEVitamin D · 10 mcgSelenium · 200 mcg

Zinc, Vitamin D, Selenium contribute to normal immune-cell function and regulation. Vitamin A also supports protective barriers. Copper, Vitamin B6, Vitamin B12, Folate can help restore immune processes impaired by low intake, without establishing extra protection when intake is adequate. Vitamin C contributes nutritionally, but this serving is below the exposures described for regular-use cold-duration support. Higher Vitamin B6 amounts do not establish extra benefit or suitability.

How this product is rated for Immunity

Ingredient fit65

Vitamin C connects the formula to immunity. Amounts provide uneven support against the supplied comparisons; smaller or unresolved quantities limit some contributions.
Goal fit
Relevant immune nutrients are included within a broader formula with other active ingredients.
Dose adequacy
Amounts provide uneven support against the supplied comparisons; smaller or unresolved quantities limit some contributions.

Pathways100

The strongest saved finding concerns oxidative and inflammatory balance.
Depth
The strongest saved finding concerns oxidative and inflammatory balance.
Breadth
The broader saved findings cover barrier and antimicrobial defense, lymphocyte function and immune regulation, oxidative and inflammatory balance.

Evidence100

Zinc provides the strongest saved evidence finding. Nutritional function or modest regular-use symptom support does not establish general infection prevention.
Evidence strength
Zinc drives the strongest saved evidence finding; the practical support remains bounded by its specific nutritional or regular-use role.
Studied preparation
The saved finding accepts the declared forms without establishing that they outperform other forms.

Formulation logic100

No unmet ingredient partner or configured conflict was identified. The included contributors meet the saved minimum amount criterion; this does not establish clinical effectiveness.
Partner coverage
The included ingredients have no unmet partner requirement in the supplied findings.
Conflicts
No configured ingredient conflict was identified in the supplied findings.
Effective doses
The included contributors meet the saved minimum amount criterion; this does not establish clinical effectiveness.
Study evidence
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
Highest effect
B+ Ingredient FitA+ PathwaysB+ EvidenceA+ Formulation Logic
Folate · 1333 mcg DFEVitamin B12 · 100 mcgVitamin D · 10 mcgMagnesium · 7.2 mgSelenium · 200 mcgZinc · 15 mgVitamin C · 150 mg

B vitamins and folate supply nutrients for normal metabolism and blood formation, while zinc and selenium contribute to normal defence functions. Iodine adds thyroid-related nutrition when intake is low. These roles do not establish extra benefit with an adequate diet, and the high folate and several B-vitamin amounts do not imply greater benefit. Magnesium, vitamin D, vitamin C and calcium are present at amounts that are not independently counted in the saved findings.

How this product is rated for Everyday Health

Ingredient fit82

The relevant ingredients contribute to energy metabolism, blood formation, normal defence functions. Their main value is nutrient availability when intake is low.
Goal fit
The formula includes relevant nutrients alongside additional actives that do not establish a contribution to this goal.
Dose adequacy
Vitamin B3 (Niacin), Vitamin B12 and Zinc provide smaller contributions than the other counted nutrients; the serving does not establish the full daily intake.

Pathways100

The counted ingredients span energy metabolism, blood formation, normal defence functions. These are contributions to normal nutrient functions rather than proof of broad health improvements.
Depth
Folate and the accompanying B vitamins provide the strongest contribution to normal blood formation.
Breadth
The saved findings extend across energy metabolism, blood formation, normal defence functions; this describes nutritional roles rather than proven improvements in all these areas.

Evidence82

Vitamin B9 (Folate) anchors the strongest supported nutritional contribution. The preparation findings do not establish extra benefit from named chemical forms or supplementation above adequate intake.
Evidence strength
Vitamin B9 (Folate) provides the strongest supported contribution among the counted ingredients, primarily as nutrition for low intake rather than demonstrated extra benefit above adequacy.
Studied preparation
The counted preparations meet the saved preparation finding; no superiority of a named form or delivery method is established.

Formulation logic100

The independently counted ingredients satisfy the amount and partner checks, with no evaluated conflict triggered. These findings do not establish synergy or overall suitability.
Partner coverage
The counted nutrients work independently or have their required partner present; this does not establish an added combination benefit.
Conflicts
None of the evaluated ingredient combinations triggered a conflict finding; this does not establish overall suitability.
Effective doses
All independently counted ingredients meet the saved amount check; smaller present ingredients may remain outside this finding.
Study evidence
Folate Supportive 80 studies
Magnesium Supportive 114 studies
Selenium Supportive 70 studies
Vitamin C Supportive 56 studies
Vitamin D Supportive 115 studies
Zinc Supportive 60 studies
Skin Health
Impact
High effect
C Ingredient FitB+ PathwaysA+ EvidenceA+ Formulation Logic
Zinc · 15 mgVitamin C · 150 mgCopper · 2 mgSelenium · 200 mcgVitamin E · 67 mg

Vitamin C supports collagen, while zinc and several B vitamins can address deficiency-related skin problems. Extra intake has no established added benefit when nutrition is adequate. The small lutein declaration is below the amount used in selected skin-tone and UV-response trials, and its unidentified preparation cannot be assumed equivalent to the tested material.

How this product is rated for Skin Health

Ingredient fit62

Relevant ingredients share this formula with actives aimed at other purposes. The relevant amounts only partially match the recorded exposure comparison, with unresolved amounts contributing nothing to that comparison.
Goal fit
Relevant ingredients share this formula with actives aimed at other purposes.
Dose adequacy
The relevant amounts only partially match the recorded exposure comparison, with unresolved amounts contributing nothing to that comparison.

Pathways80

The strongest recorded connection concerns dermal collagen matrix; this describes the ingredient connection, not a demonstrated cosmetic result.
Depth
The strongest recorded connection concerns dermal collagen matrix; this describes the ingredient connection, not a demonstrated cosmetic result.
Breadth
The recorded connections span collagen structure and UV-related responses; neither establishes the finished product’s cosmetic effects.

Evidence100

Vitamin C’s role in collagen and deficiency-related healing is established; extra cosmetic benefit in adequately nourished adults is not.
Evidence strength
Vitamin C’s role in collagen and deficiency-related healing is established; extra cosmetic benefit in adequately nourished adults is not.
Studied preparation
The recorded preparation comparison is satisfied, but preparation-specific study findings do not automatically transfer to every ingredient or finished product.

Formulation logic100

No required partner was missing and no defined conflict was identified. The relevant amounts meet the recorded minimum comparison; this is not proof of a clinically effective skin dose.
Partner coverage
No required partner was missing in the recorded findings; this does not establish an added combination benefit.
Conflicts
No defined ingredient conflict was identified in the supplied findings.
Effective doses
The relevant amounts meet the recorded minimum comparison; this is not proof of a clinically effective skin dose.
Study evidence
Biotin Supportive 10 studies
Copper Supportive 16 studies
Niacin Supportive 61 studies
Selenium Supportive 22 studies
Vitamin A Supportive 106 studies
Vitamin C Supportive 53 studies
Vitamin E Supportive 38 studies
Zinc Supportive 66 studies
Weight Loss
Impact
Moderate effect
D+ Ingredient FitF PathwaysB- EvidenceA+ Formulation Logic
Iodine · 150 mcgVitamin D · 10 mcgMagnesium · 7.2 mgSelenium · 200 mcgZinc · 15 mg

Chromium has evidence for very small weight reductions, with uncertain practical importance; higher amounts have not reliably increased the effect. Zinc, iodine and selenium support normal nutritional and thyroid functions, but those roles do not show that supplements cause weight loss.

The small inositol amount adds little clear support for general weight management. Vitamin D and magnesium are better viewed as nutritional support than as weight-loss ingredients.

How this product is rated for Weight Loss

Ingredient fit53

The ingredient mix has some connection to weight management, but its amounts and broader purposes limit the match.
Goal fit
The relevant ingredients are part of a formula with broader intended uses, limiting its specific focus on weight management.
Dose adequacy
The assessed amounts provide a substantial but partial match to the saved exposure comparisons.

Pathways5

The strongest connection in the saved findings is fat and glucose metabolism, with limited coverage.
Depth
The strongest connection in the saved findings is fat and glucose metabolism, with limited coverage.
Breadth
None of the specified areas reaches the saved coverage threshold.

Evidence70

The saved evidence finding identifies the leading assessed ingredients, with important limits on expected weight-loss benefits.
Evidence strength
Zinc leads the saved evidence comparison among ingredients meeting the amount criterion. The relevant weight-loss findings remain limited.
Studied preparation
The assessed ingredients meeting the amount criterion match the saved preparation criteria.

Formulation logic100

The saved assessment flags no missing required partners or ingredient conflicts; the amount comparison remains ingredient-specific.
Partner coverage
The assessed ingredients can stand alone or have the partners required by the saved assessment.
Conflicts
No configured ingredient conflicts were flagged.
Effective doses
4 of 4 assessed ingredients meet the saved minimum amount criterion. That criterion does not establish weight loss.
Study evidence
Chromium No effect 24 studies
Iodine Adverse 3 studies
Magnesium Supportive 17 studies
Selenium Mixed 9 studies
Vitamin D Disputed 80 studies
Zinc Disputed 32 studies
Impact
High effect
C Ingredient FitC PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 300 mcgVitamin D · 10 mcgZinc · 15 mgVitamin C · 150 mg

Zinc can help address diffuse shedding when zinc deficiency contributes to it; extra regrowth benefit with adequate intake is not established. Vitamin C contributes to normal collagen synthesis and iron absorption without proving independent regrowth. This broad nutrient formula does not establish an added hair benefit from larger vitamin A or selenium amounts; excess of either can contribute to hair loss. Iodine’s thyroid role does not establish a direct hair benefit.

How this product is rated for Hair Health

Ingredient fit65

Zinc is a principal contributor to this formula’s hair comparison. The counted amounts provide partial matches to the supplied references, limiting their contribution.
Goal fit
Ingredients relevant to the saved hair comparison share the formula with ingredients serving other purposes.
Dose adequacy
The counted amounts provide partial matches to the supplied references, limiting their contribution.

Pathways60

Follicle antioxidant protection is the strongest represented route; this biological connection alone does not establish hair regrowth. Only one listed route reaches the coverage threshold, leaving support concentrated rather than broad.
Depth
Follicle antioxidant protection is the strongest represented route; this biological connection alone does not establish hair regrowth.
Breadth
Only one listed route reaches the coverage threshold, leaving support concentrated rather than broad.

Evidence97

Zinc provides the strongest evidence contribution among the counted ingredients; that finding retains the supplied clinical limitations. Iodine does not match a studied preparation in the supplied findings, limiting direct transfer of evidence.
Evidence strength
Zinc provides the strongest evidence contribution among the counted ingredients; that finding retains the supplied clinical limitations.
Studied preparation
Iodine does not match a studied preparation in the supplied findings, limiting direct transfer of evidence.

Formulation logic100

The counted ingredients have no unmet partner requirement; this does not establish an extra benefit from combining them. All counted ingredients reach the minimum amount threshold used here; it is not a proven effective hair-growth dose.
Partner coverage
The counted ingredients have no unmet partner requirement; this does not establish an extra benefit from combining them.
Conflicts
No listed ingredient conflict was identified in the supplied checks.
Effective doses
All counted ingredients reach the minimum amount threshold used here; it is not a proven effective hair-growth dose.
Study evidence
Biotin Supportive 4 studies
Copper Adverse 4 studies
Folate Mixed 15 studies
Iodine No effect 1 study
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
Impact
Moderate effect
C+ Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Iodine · 150 mcgVitamin D · 10 mcgVitamin B5 · 50 mgMagnesium · 7.2 mgRiboflavin · 25 mgThiamin · 25 mgVitamin B12 · 100 mcg

B vitamins contribute to normal processing of food into usable energy, while folate supports normal blood formation. Their role is nutritional support, with benefits for tiredness most relevant when intake is inadequate. Vitamin C adds nutritional support, while the small magnesium amount contributes little in the saved assessment.

How this product is rated for Energy

Ingredient fit68

Energy-related ingredients sit within a formula serving broader purposes. The assessed quantities provide a meaningful but incomplete match to the saved benchmarks.
Goal fit
Energy-related ingredients sit within a formula serving broader purposes.
Dose adequacy
The assessed quantities provide a meaningful but incomplete match to the saved benchmarks.

Pathways0

The saved findings concern nutritional support, with no direct energy mechanism receiving coverage. The saved findings show limited breadth across the assessed energy mechanisms.
Depth
The saved findings concern nutritional support, with no direct energy mechanism receiving coverage.
Breadth
The saved findings show limited breadth across the assessed energy mechanisms.

Evidence77

Vitamin B2 (Riboflavin) provides the strongest evidence contribution among the assessed ingredients. Most qualifying ingredients match studied preparations in the saved assessment; iodine does not.
Evidence strength
Vitamin B2 (Riboflavin) provides the strongest evidence contribution among the assessed ingredients.
Studied preparation
Most qualifying ingredients match studied preparations in the saved assessment; iodine does not.

Formulation logic100

The assessed ingredients can contribute independently or have their required partners. No ingredient conflict was flagged by the saved checks.
Partner coverage
The assessed ingredients can contribute independently or have their required partners.
Conflicts
No ingredient conflict was flagged by the saved checks.
Effective doses
All counted ingredients meet the saved minimum amount threshold.
Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies
Thiamin Disputed 12 studies
Vitamin D Supportive 32 studies

Ingredients

IngredientAmount per servingScore
Vitamin A (Beta-Carotene, Retinyl Palmitate)
3000 mcg RAE
Vitamin C (Ascorbic Acid)
150 mg
Vitamin D (Cholecalciferol)
10 mcg
Vitamin E (D-Alpha-Tocopheryl Acid Succinate)
67 mg
Thiamin (Thiamine Mononitrate)
25 mg 65
Riboflavin
25 mg 67
Niacin (Niacinamide)
10 mg NE
Vitamin B6 (Pyridoxine Hydrochloride)
25 mg 81
Folate
1333 mcg DFE
Vitamin B12 (Cyanocobalamin)
100 mcg
Biotin
300 mcg 59
Pantothenic Acid (Calcium D-Pantothenate)
50 mg 70
Calcium (Calcium Carbonate, Calcium Citrate)
25 mg
Iodine (Potassium Iodide)
150 mcg 100
Magnesium (Magnesium Aspartate, Magnesium Oxide)
7.2 mg
Zinc (Zinc Picolinate)
15 mg
Selenium (Sodium Selenate)
200 mcg 69
Copper (Copper Gluconate)
2 mg 73
Manganese (Manganese Gluconate)
5 mg 92
Chromium (Chromium Chloride)
200 mcg 54
Molybdenum (Sodium Molybdate)
150 mcg 78
Choline (Choline Bitartrate)
10 mg 50
Inositol
10 mg
FloraGlo Lutein
500 mcg
Adults 18–50
Report overview
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
A Ingredient Form & Label QualityC Dose, Safety & Label TransparencyA+ Value
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 RBC folate and lumbar bone mineral density in postmenopausal women, a cross-sectional study from NHANES 2009-2018.
    Wei H; Jin Z; Zhou L; Tang G; Chai S; Che X; Tan Y; Zeng W · Frontiers in endocrinology · 2025
    Cross-sectional study1,315 participantsBone Health forFolate
  12. Genetic variants modify the associations of concentrations of methylmalonic acid, vitamin B-12, vitamin B-6, and folate with bone mineral density.
    Liu CT; Karasik D; Xu H; Zhou Y; Broe K; Cupples LA; Cpgm de Groot L; Ham A; Hannan MT; Hsu YH; Jacques P; McLean RR; Paul L; Selhub J; Trajanoska K; van der Velde N; van Schoor N; Kiel DP · The American journal of clinical nutrition · 2021
    Cohort study4,310 participantsBone Health forFolate
  13. Adequate Intake and Supplementation of B Vitamins, in Particular Folic Acid, can Play a Protective Role in Bone Health.
    Rondanelli M; Tartara A; Fossari F; Vecchio V; Faliva MA; Naso M; Perna S; Nichetti M; Peroni G · Current aging science · 2022
    Narrative review35,298 participants29 studies pooledBone Health forFolate Bone Health forVitamin B6
  14. Relation of homocysteine, folate, and vitamin B12 to bone mineral density of postmenopausal women.
    Cagnacci A; Baldassari F; Rivolta G; Arangino S; Volpe A · Bone · 2004
    Cross-sectional study161 participantsBone Health forFolate
  15. Dietary intake of folate, but not vitamin B2 or B12, is associated with increased bone mineral density 5 years after the menopause: results from a 10-year follow-up study in early postmenopausal women.
    Rejnmark L; Vestergaard P; Hermann AP; Brot C; Eiken P; Mosekilde L · Calcified tissue international · 2008
    Cohort study1,869 participantsBone Health forFolate
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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