Only One Liquid-Gel Multi Without Iron

Only One Liquid-Gel Multi Without Iron

Irwin Naturals4.3 (79 ratings)
Format:Softgel Quantity: 60 Softgel(s) · 60 servings
Goals

Product analysis

51 out of 100

Only One Liquid-Gel Multi Without Iron offers broad nutritional support, including nutrients used in normal energy and immune functions, especially when the diet leaves gaps. Its undisclosed blends make the complete formula harder to judge.

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

Nutrient Quality59

Several identified forms are favorable choices, including vitamin D3, natural-form vitamin E and L-selenomethionine. Quality is uneven across the mixture, with zinc oxide less favorable for absorption and several forms or blend components left unclear.

Ingredient Transparency72

Amounts and most forms are stated, which helps compare the main nutrients. Several unspecified forms and two unidentified blends leave the full composition less clear.

Value For Money48

Value varies considerably between nutrients, with natural-form vitamin E among the strengths and selenium and vitamin B5 less economical. Uncertain comparisons for several other ingredients make the value of the complete formula harder to establish.

Customer Satisfaction63

Customer feedback is mostly positive, with fewer than a hundred ratings. That is a relatively small base for judging consistent satisfaction.

Product Focus2

The formula mainly helps supply nutrients when dietary intake falls short. Its many ingredients and wide range of suggested uses make it less targeted, and the hidden blends prevent a full ingredient count.

Format
Softgel
Container
60 Softgel(s)
Per serving
$0.35
Customer rating
4.3 · 79 ratings
Report analysis

Goals

Immunity
Impact
High effect
D+ Ingredient FitB- PathwaysA+ EvidenceA Formulation Logic
Magnesium · 10 mgVitamin C · 200 mgZinc · 15 mgVitamin A · 5000 IUVitamin D · 1000 IUSelenium · 70 mcg

Vitamin C supports immune-cell activity and protective barriers, with modest cold-duration benefits from regular supplementation. Zinc and vitamin D contribute to normal immune function, while selenium supports selenium-dependent systems involved in oxidative balance. Copper, B vitamins and folate can help restore normal immune-cell function when intake is low or deficiency impairs it. These nutritional roles do not establish extra infection protection once needs are met.

How this product is rated for Immunity

Ingredient fit51

The ingredients provide a connection to immunity through the roles described above. The saved amount finding is partial, with unresolved nutrient amounts limiting interpretation.
Goal fit
The formulation combines immunity-related ingredients with a broader set of ingredients for other purposes.
Dose adequacy
The saved amount finding is partial, with unresolved nutrient amounts limiting interpretation.

Pathways74

The saved finding is strongest for lymphocyte function and immune regulation, based on Zinc, Selenium, Vitamin D, Vitamin C. These mapped roles do not establish a product-level infection-prevention effect.
Depth
The saved finding is strongest for lymphocyte function and immune regulation, based on Zinc, Selenium, Vitamin D, Vitamin C.
Breadth
2 immune mechanisms reach the saved coverage threshold; this describes the ingredients' mapped roles, not infection prevention.

Evidence100

The strongest supported interpretation is a nutritional role or the specific symptom benefit described above.
Evidence strength
Zinc leads the saved evidence finding. The supplied context limits what this means for routine infection protection.
Studied preparation
The saved finding recognizes the relevant preparations. This does not establish a clinical advantage for these forms or this complete product.

Formulation logic94

No configured ingredient conflict was identified; this is a limited formulation check. The recognized ingredients have no unmet partner requirement in the saved findings.
Partner coverage
The recognized ingredients have no unmet partner requirement in the saved findings.
Conflicts
No configured ingredient conflict was identified; this is a limited formulation check.
Effective doses
Vitamin A, Vitamin E falls below the saved amount threshold because the relevant amount is unresolved.
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
Everyday Health
Impact
Highest effect
B Ingredient FitA+ PathwaysB+ EvidenceA+ Formulation Logic
Folate · 400 mcgVitamin B12 · 50 mcgVitamin D · 1000 IUMagnesium · 10 mgFish Oil · 500 mgSelenium · 70 mcgZinc · 15 mgVitamin C · 200 mg

B vitamins, folate, vitamin D, zinc and selenium contribute nutrient availability when the diet leaves gaps. Their normal metabolic and mineral roles do not establish improved energy or disease prevention when intake is adequate. The small fish-oil quantity does not establish EPA+DHA exposure, and methylated B12 or the liquid-gel delivery does not establish superior outcomes. Ginger remains unresolved in the imported inventory.

How this product is rated for Everyday Health

Ingredient fit79

Several nutrient ingredients receive credit within a wider formula serving multiple goals.
Goal fit
Several nutrient ingredients receive credit within a wider formula serving multiple goals.
Dose adequacy
Most credited nutrients make full or partial contributions; magnesium, vitamin C, fish oil and calcium fall below inclusion.

Pathways100

The strongest assigned coverage concerns nutrient roles in energy metabolism.
Depth
The strongest assigned coverage concerns nutrient roles in energy metabolism. This biological coverage does not establish better health outcomes.
Breadth
Energy metabolism, blood formation and antioxidant nutrient roles reach the coverage threshold.

Evidence82

Vitamin B9 (Folate) receives the strongest assigned evidence weight for a conditional nutritional contribution, without establishing benefit above adequate intake.
Evidence strength
Vitamin B9 (Folate) receives the strongest assigned evidence weight for a conditional nutritional contribution, without establishing benefit above adequate intake.
Studied preparation
The credited preparations are recognized in the saved findings; no chemical form or delivery method receives an added benefit claim.

Formulation logic100

Credited ingredients have no missing required partner, and no configured ingredient conflict was identified.
Partner coverage
Every credited ingredient works independently or has its required nutritional partner.
Conflicts
No configured ingredient conflict was identified.
Effective doses
Every credited ingredient meets the comparison's amount threshold; this is not a proven health-outcome dose.
Study evidence
Fish Oil Supportive 61 studies
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
Hair Health
Impact
High effect
D+ Ingredient FitD+ PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 500 mcgVitamin D · 1000 IUZinc · 15 mgVitamin C · 200 mg

Zinc can help address diffuse shedding when zinc intake is deficient. Biotin has a similar role when biotin is deficient; extra regrowth is not established with adequate intake. Vitamin C supports normal collagen synthesis and iron absorption, without an established independent regrowth effect. Selenium contributes antioxidant biology, but routine hair benefit is unproven.

How this product is rated for Hair Health

Ingredient fit54

Relevant nutritional ingredients are present, with the amount findings determining how much they contribute.
Goal fit
The formula includes relevant nutrients alongside ingredients serving broader purposes.
Dose adequacy
The declared amounts provide uneven support against the supplied comparison anchors; some contributions are limited or unresolved.

Pathways52

Antioxidant-related nutrient contributions are the strongest finding, without establishing a clinical hair-growth effect.
Depth
Antioxidant-related nutrient contributions are the strongest finding, without establishing a clinical hair-growth effect.
Breadth
Only antioxidant-related coverage reaches the supplied requirement; androgen and stress coverage remain absent.

Evidence98

Zinc provides the strongest relevant support, specifically for deficiency-related shedding.
Evidence strength
Zinc provides the strongest relevant support, specifically for deficiency-related shedding.
Studied preparation
The saved findings accept the relevant preparations for comparison; this does not prove the whole product produces the studied hair outcomes.

Formulation logic95

The supplied findings identify no missing required partners or configured conflicts. Amount comparisons do not establish a combined hair-growth effect.
Partner coverage
No required ingredient partner is missing from the supplied findings.
Conflicts
No configured ingredient conflict was found in the supplied findings.
Effective doses
Vitamin A, Vitamin D fall below the supplied minimum amount comparison; other counted ingredients meet it.
Study evidence
Biotin Supportive 4 studies
Copper Adverse 4 studies
Folate Mixed 15 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
Impact
High effect
D+ Ingredient FitC- PathwaysA+ EvidenceA Formulation Logic
Zinc · 15 mgVitamin C · 200 mgCopper · 2 mgSelenium · 70 mcgVitamin E · 30 IU

Vitamin C supports collagen formation and helps restore wound healing when intake is deficient. Extra vitamin C has no established skin benefit when intake is adequate, and larger serving amounts do not demonstrate greater improvement. Zinc also supports skin repair when intake is low. Biotin and riboflavin mainly matter when low intake contributes to dermatitis.

How this product is rated for Skin Health

Ingredient fit54

The relevant connection is mainly nutritional support or limited surrogate evidence, rather than established cosmetic improvement.
Goal fit
The relevant connection is mainly nutritional support or limited surrogate evidence, rather than established cosmetic improvement.
Dose adequacy
The declared amounts support the saved exposure comparison; larger nutrient amounts do not establish extra benefit when intake is adequate.

Pathways56

The represented skin route has limited support from the supplied ingredients and amounts.
Depth
The represented skin route has limited support from the supplied ingredients and amounts.
Breadth
Coverage is limited to the skin routes represented by the supplied ingredients; it does not imply broad improvement.

Evidence100

Deficiency-related skin roles are clearer than added benefits in adequately nourished adults.
Evidence strength
Deficiency-related skin roles are clearer than added benefits in adequately nourished adults.
Studied preparation
The supplied preparation finding does not establish superiority of a nutrient form or equivalence to a different studied blend.

Formulation logic94

The supplied findings identify no required missing partner or specified conflict. Amount comparisons do not establish combination benefits.
Partner coverage
No missing required partner limits the eligible ingredients; no automatic combination benefit follows.
Conflicts
No specified ingredient conflict was identified in the supplied findings.
Effective doses
The included ingredients meet the supplied minimum exposure comparison; this is not a proven clinical benefit threshold.
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
Impact
Moderate effect
D Ingredient FitD- PathwaysA+ EvidenceA+ Formulation Logic
Folate · 400 mcgVitamin B12 · 50 mcgVitamin B6 · 20 mgMolybdenum · 75 mcgSelenium · 70 mcgMagnesium · 10 mgVitamin E · 30 IUZinc · 15 mgVitamin C · 200 mgRiboflavin · 20 mg

Folate, B12 and B6 support methyl-group metabolism, while riboflavin contributes to coenzyme function. Selenium, zinc and molybdenum add nutritional support for antioxidant and enzyme systems; generic broccoli and algae ingredients do not identify the studied detox preparations.

How this product is rated for Liver & Detox

Ingredient fit48

8 ingredients relate to this goal, alongside 11 actives aimed at other needs. The relevant amounts provide partial support in the saved comparison; some are modest or unclear.
Goal fit
8 ingredients relate to this goal, alongside 11 actives aimed at other needs.
Dose adequacy
The relevant amounts provide partial support in the saved comparison; some are modest or unclear.

Pathways42

Detox-enzyme induction is the strongest mechanism in the saved assessment, with moderate coverage. 1 of the three target mechanisms meets the saved coverage level.
Depth
Detox-enzyme induction is the strongest mechanism in the saved assessment, with moderate coverage.
Breadth
1 of the three target mechanisms meets the saved coverage level.

Evidence96

Vitamin B9 (Folate) provides the strongest evidence contribution among the assessed amounts. This remains specific to the supplied evidence and its context.
Evidence strength
Vitamin B9 (Folate) provides the strongest evidence contribution among the assessed amounts. This remains specific to the supplied evidence and its context.
Studied preparation
Most of the assessed contribution matches preparations recognized in the saved assessment; Molybdenum, Vitamin B2 (Riboflavin), Vitamin B6 does not.

Formulation logic97

7 of 8 assessed ingredients meet the saved amount threshold; Vitamin E falls below it or has an unclear amount. No conflict was recorded by the supplied checks.
Partner coverage
The assessed ingredients can work alone or have their required partners present.
Conflicts
No conflict was recorded by the supplied checks.
Effective doses
7 of 8 assessed ingredients meet the saved amount threshold; Vitamin E falls below it or has an unclear amount.
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
Vitamin D · 1000 IUVitamin B5 · 20 mgMagnesium · 10 mgRiboflavin · 20 mgThiamin · 20 mgVitamin B12 · 50 mcgFish Oil · 500 mg

B vitamins support normal energy metabolism, nerve function and blood cell formation. Vitamin D at 25 mcg and vitamin C add nutritional support, but the supplied facts do not show extra energy in adequately nourished adults.

How this product is rated for Energy

Ingredient fit63

B vitamins, vitamin D and vitamin C provides the main nutritional contribution to the energy goal. The relevant known amounts provide substantial support relative to the saved comparison amounts.
Goal fit
B vitamins, vitamin D and vitamin C provides the main nutritional contribution to the energy goal.
Dose adequacy
The relevant known amounts provide substantial support relative to the saved comparison amounts.

Pathways0

The saved findings record nutritional contributions without direct coverage of the assessed energy mechanisms.
Depth
No assessed energy mechanism has direct coverage in the saved findings.
Breadth
No assessed route reaches the saved coverage threshold.

Evidence95

Vitamin D has the strongest evidence finding among the ingredients meeting the saved dose criterion. Benefits remain dependent on nutritional status and the setting. The preparations meeting the saved dose criterion are accepted in the saved findings.
Evidence strength
Vitamin D has the strongest evidence finding among the ingredients meeting the saved dose criterion. Benefits remain dependent on nutritional status and the setting.
Studied preparation
The preparations meeting the saved dose criterion are accepted in the saved findings.

Formulation logic100

The relevant ingredients can contribute without a required additional partner. No ingredient conflicts were identified.
Partner coverage
The relevant ingredients can contribute without a required additional partner.
Conflicts
No ingredient conflicts were identified in the saved assessment.
Effective doses
All ingredients included in the saved dose check meet its minimum contribution threshold.
Study evidence
Fish Oil Disputed 8 studies
Magnesium Supportive 4 studies
Thiamin Disputed 12 studies
Vitamin D Supportive 32 studies

Ingredients

IngredientAmount per servingScore
Vitamin A (Beta-Carotene)
5000 IU 69
Vitamin C (Ascorbic Acid)
200 mg
Vitamin D (Vitamin D3)
1000 IU 63
Vitamin E (D-Alpha-Tocopherol)
30 IU 65
Thiamine (Thiamine Hydrochloride)
20 mg 60
Riboflavin
20 mg 54
Niacin (Niacinamide)
20 mg 65
Vitamin B6 (Pyridoxine Hydrochloride)
20 mg 78
Folic Acid
400 mcg 54
Vitamin B12 (Methylcobalamin)
50 mcg
Biotin
500 mcg 56
Pantothenic Acid (D-Calcium Pantothenate)
20 mg 61
Calcium (Calcium Citrate)
20 mg
Magnesium (Magnesium Oxide)
10 mg
Zinc (Zinc Oxide)
15 mg 54
Selenium (L-Selenomethionine)
70 mcg 70
Copper (Copper Citrate)
2 mg 82
Manganese (Manganese Citrate)
2 mg 82
Chromium (Chromium Picolinate)
120 mcg 53
Molybdenum (Molybdenum Citrate)
75 mcg 65
Fish Oil
500 mg 10
Green Super Food Blend
25 mg
BioPerine Complex
6 mg
Men 18–50
Report overview
A Ingredient Form & Label QualityC Dose, Safety & Label TransparencyB Value
B Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyB+ Value
D+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyB+ Value
Report alternatives

Sources

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

  1. Marine Omega-3 Supplementation and Cardiovascular Disease: An Updated Meta-Analysis of 13 Randomized Controlled Trials Involving 127 477 Participants.
    Hu Y; Hu FB; Manson JE · Journal of the American Heart Association · 2020
    Meta-analysis127,477 participants13 studies pooledCardiovascular Support forFish Oil
  2. Impact of omega-3 fatty acids on hypertriglyceridemia, lipidomics, and gut microbiome in patients with type 2 diabetes.
    Lu J; Liu R; Ren H; Wang S; Hu C; Shi Z; Li M; Liu W; Wan Q; Su Q; Li Q; Zheng H; Qu S; Yang F; Ji H; Lin H; Qi H; Wu X; Wu K; Chen Y; Xu Y; Xu M; Wang T; Zheng J; Ning G; Zheng R; Bi Y; Zhong H; Wang W · Med (New York, N.Y.) · 2025
    Randomized trial309 participantsCardiovascular Support forFish Oil
  3. A systematic review of fish-oil supplements for the prevention and treatment of hypertension.
    Campbell F; Dickinson HO; Critchley JA; Ford GA; Bradburn M · European journal of preventive cardiology · 2013
    Meta-analysis1,524 participants17 studies pooledCardiovascular Support forFish Oil
  4. Effects of fish oil-derived fatty acids on suboptimal cardiovascular health: A multicenter, randomized, double-blind, placebo-controlled trial.
    Zeng Q; Dong SY; Liu YP; Fu J; Shuai P; Zhao ZM; Li TX · Nutrition, metabolism, and cardiovascular diseases : NMCD · 2017
    Randomized trial422 participantsCardiovascular Support forFish Oil
  5. Effect of High-Dose Marine Omega-3 Fatty Acids on Atherosclerosis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.
    Sekikawa A; Cui C; Sugiyama D; Fabio A; Harris WS; Zhang X · Nutrients · 2020
    Meta-analysis6 studies pooledCardiovascular Support forFish Oil
  6. Associations of dietary folate, vitamin B6 and B12 intake with cardiovascular outcomes in 115664 participants: a large UK population-based cohort.
    Zhang B; Dong H; Xu Y; Xu D; Sun H; Han L · European journal of clinical nutrition · 2023
    Cohort study115,664 participantsCardiovascular Support forFolate
  7. Folate, Homocysteine, and Adverse Outcomes After Ischemic Stroke.
    Shi M; Zheng J; Liu Y; Mao X; Wu X; Chu M; Niu H; Sun L; Chang X; He Y; Liu Y; Guo D; Zhang Y; Zhu Z; Zhao J · Journal of the American Heart Association · 2024
    Cohort study3,530 participantsCardiovascular Support forFolate
  8. Effect of folic acid on endothelial function following acute myocardial infarction.
    Moens AL; Claeys MJ; Wuyts FL; Goovaerts I; Van Hertbruggen E; Wendelen LC; Van Hoof VO; Vrints CJ · The American journal of cardiology · 2007
    Randomized trial40 participantsCardiovascular Support forFolate
  9. Folic acid enhances endothelial function and reduces blood pressure in smokers: a randomized controlled trial.
    Mangoni AA; Sherwood RA; Swift CG; Jackson SH · Journal of internal medicine · 2003
    Randomized trial24 participantsCardiovascular Support forFolate
  10. 5-methyltetrahydrofolate, the active form of folic acid, restores endothelial function in familial hypercholesterolemia.
    Verhaar MC; Wever RM; Kastelein JJ; van Dam T; Koomans HA; Rabelink TJ · Circulation · 1998
    Non-randomized trial20 participantsCardiovascular Support forFolate
  11. Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
    Del Gobbo LC; Imamura F; Wu JH; de Oliveira Otto MC; Chiuve SE; Mozaffarian D · The American journal of clinical nutrition · 2013
    Meta-analysis313,041 participants16 studies pooledCardiovascular Support forMagnesium
  12. Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
    Qu X; Jin F; Hao Y; Li H; Tang T; Wang H; Yan W; Dai K · PloS one · 2013
    Meta-analysis532,979 participants19 studies pooledCardiovascular Support forMagnesium
  13. Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
    Zhao L; Hu M; Yang L; Xu H; Song W; Qian Y; Zhao M · Journal of cardiovascular pharmacology · 2020
    Meta-analysis544,581 participants18 studies pooledCardiovascular Support forMagnesium
  14. Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
    Norouzzadeh M; Rashedi MH; Mahdavi-Mazdeh G; Kosari A; Shahinfar H · Current atherosclerosis reports · 2026
    Meta-analysisCardiovascular Support forMagnesium Cardiovascular Support forVitamin D
  15. Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.
    Xiong J; He T; Wang M; Nie L; Zhang Y; Wang Y; Huang Y; Feng B; Zhang J; Zhao J · Journal of nephrology · 2020
    Meta-analysis200,934 participants20 studies pooledCardiovascular Support forMagnesium
  16. The current state of niacin in cardiovascular disease prevention: a systematic review and meta-regression.
    Lavigne PM; Karas RH · Journal of the American College of Cardiology · 2013
    Meta-analysis9,959 participants11 studies pooledCardiovascular Support forNiacin
  17. Effects of niacin on apo A1 and B levels: a systematic review and meta-analysis of randomised controlled trials.
    Saboori S; Yousefi Rad E; Tammam J; Thondre PS; Coe S · The British journal of nutrition · 2024
    Meta-analysis12 studies pooledCardiovascular Support forNiacin
  18. Effect of lipid-lowering therapies on lipoprotein(a) levels: a comprehensive meta-analysis of randomized controlled trials.
    Xie S; Galimberti F; Olmastroni E; Carugo S; Catapano AL; Casula M; META-LIPID Group · Atherosclerosis · 2025
    Meta-analysis145,314 participants147 studies pooledCardiovascular Support forNiacin
  19. Extended-release niacin vs gemfibrozil for the treatment of low levels of high-density lipoprotein cholesterol. Niaspan-Gemfibrozil Study Group.
    Guyton JR; Blazing MA; Hagar J; Kashyap ML; Knopp RH; McKenney JM; Nash DT; Nash SD · Archives of internal medicine · 2000
    Randomized trial173 participantsCardiovascular Support forNiacin
  20. Equivalent efficacy of a time-release form of niacin (Niaspan) given once-a-night versus plain niacin in the management of hyperlipidemia.
    Knopp RH; Alagona P; Davidson M; Goldberg AC; Kafonek SD; Kashyap M; Sprecher D; Superko HR; Jenkins S; Marcovina S · Metabolism: clinical and experimental · 1998
    Randomized trial223 participantsCardiovascular Support forNiacin