$45.10 $0.75 per serving
Product analysis
One 'n' Only may help fill nutrient gaps that matter for normal immune function, blood formation and bone health. Undisclosed blend contents make the added ingredients harder to judge.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality62
Several B vitamins and minerals have well-identified, favorable forms. Kelp-derived iodine is less precisely identified, and unknown blend contents limit a full quality judgment.
Ingredient Transparency75
All ingredient amounts and most forms are listed. Blend contents and the proportions of mixed forms are not disclosed, limiting detailed comparison.
Value For Money34
Several nutrients are relatively costly at the serving price, even though B6 offers fairer value. Reliable comparisons are unavailable for much of the remaining formula.
Customer Satisfaction74
Customer ratings are very positive across hundreds of reviews. They describe satisfaction without proving broad health benefits.
Product Focus0
The clearest role is filling nutrient gaps relevant to immunity, blood formation and normal energy use. Small calcium and magnesium amounts offer limited support for bone-focused use, and extra benefits remain uncertain when nutritional needs are met.
- Format
Tablet - Container
- 60 Tablet(s)
- Per serving
- $0.75
- Also available
One 'n' Only$19.46- Customer rating
- 4.7 · 256 ratings
Goals
Impact
Highest effect
Magnesium · 25 mgVitamin C · 240 mgZinc · 15 mgVitamin A · 6000 mcgVitamin D · 25 mcgSelenium · 100 mcg
Impact
Highest effect
Folate · 400 mcgVitamin B12 · 100 mcgVitamin D · 25 mcgMagnesium · 25 mgVitamin K · 20 mcgSelenium · 100 mcgZinc · 15 mgVitamin C · 240 mg
Impact
High effect
Biotin · 100 mcgNiacin · 25 mgVitamin B12 · 100 mcgRiboflavin · 25.5 mgThiamin · 22.5 mgVitamin B5 · 30 mgVitamin B6 · 30 mgVitamin D · 25 mcgZinc · 15 mgMagnesium · 25 mg
Impact
High effect
Zinc · 15 mgVitamin C · 240 mgCopper · 1 mgSelenium · 100 mcgVitamin E · 83 mg
Impact
Lower effect
Folate · 400 mcgVitamin B12 · 100 mcgVitamin B6 · 30 mgMolybdenum · 30 mcgSelenium · 100 mcgMagnesium · 25 mgVitamin E · 83 mgZinc · 15 mgVitamin C · 240 mgCholine · 50 mgRiboflavin · 25.5 mg
Riboflavin Not classified
No linked studies yet.
Vitamin B6 Not classified
No linked studies yet.
Impact
Moderate effect
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 30 mgMagnesium · 25 mgRiboflavin · 25.5 mgThiamin · 22.5 mgVitamin B12 · 100 mcgPotassium · 5 mg
Vitamin B5 Not classified
No linked studies yet.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin A (Beta-Carotene) | 6000 mcg | |
Vitamin C (Calcium Ascorbate) | 240 mg | |
Vitamin D3 | 25 mcg | |
Vitamin E (D-Alpha-Tocopheryl Succinate) | 83 mg | |
Vitamin K2 (Menaquinone-7) | 20 mcg | |
Thiamine (Thiamine Mononitrate) | 22.5 mg | |
Riboflavin | 25.5 mg | |
Niacin (Niacinamide) | 25 mg | |
Vitamin B6 (Pyridoxine Hydrochloride) | 30 mg | |
Folate (L-5-Methyltetrahydrofolate) | 400 mcg | |
Vitamin B12 (Methylcobalamin) | 100 mcg | |
Biotin (D-Biotin) | 100 mcg | |
Pantothenic Acid (D-Calcium Pantothenate) | 30 mg | |
Choline (Choline Bitartrate) | 50 mg | |
Calcium (Calcium Ascorbate, Calcium Pantothenate) | 32 mg | |
Iodine (North Atlantic Kelp) | 150 mcg | |
Magnesium (Magnesium Citrate, Magnesium Oxide) | 25 mg | |
Zinc (Zinc Lactate) | 15 mg | |
Selenium (Selenium L-Methyl Selenocysteine) | 100 mcg | |
Copper (Copper Sebacate) | 1 mg | |
Manganese (Manganese Citrate) | 2.5 mg | |
Chromium (Chromium Polynicotinate) | 100 mcg | |
Molybdenum (Molybdenum Glycinate) | 30 mcg | |
Potassium (Potassium Citrate) | 5 mg | |
SuperFood Complex | 387.5 mg | |
Herbal Extracts | 220 mg | |
Co-Nutrients | 35 mg | |
Bioflavonoids | 50 mg | |
Minerals | 26 mg | |
Digestive Aids/Enzymes | 10 mg |
Iodine (North Atlantic Kelp) · 150 mcg OverallScore74
A serving supplies 150 mcg of iodine at a higher cost per serving. That amount fits daily maintenance. The chemical form of iodine is unknown.
How this ingredient is rated
Active Ingredient Quality & Bioavailability61
The chemical form of iodine is unknown. The marine source has an organic or geographic sourcing marker, although the specific detail is unavailable here.
Iodine Form & Bioavailability
The chemical form of iodine is unknown.
Marine Source Purity & Sourcing
The marine source has an organic or geographic sourcing marker, although the specific detail is unavailable here.
Dose, Safety & Label Transparency100
The label states 150 mcg of iodine per serving. That amount supports daily maintenance and is below the adult upper limit.
Dosage Efficacy for Daily Support
The 150 mcg serving falls within the range for daily thyroid maintenance.
Dosage Safety & Upper Limits
The 150 mcg serving is below the adult upper intake limit.
Elemental Iodine Transparency
The label states the iodine amount as 150 mcg per serving.
Value50
The cost per labeled serving is higher.
Price Per Effective Serving
The cost per labeled serving is higher.
Vitamin B6 (Pyridoxine Hydrochloride) · 30 mg OverallScore75
Each serving provides 30 mg per serving of vitamin B6 at a moderate cost per mg. That serving exceeds the European adult daily upper limit of 12 mg. The B6 comes from pyridoxine hydrochloride.
How this ingredient is rated
Ingredient Form & Label Quality100
The B6 source is pyridoxine hydrochloride. No artificial dyes, titanium dioxide or talc are reported.
Vitamin B6 Form Identification
The B6 comes from pyridoxine hydrochloride.
Clean Label and Excipient Purity
No artificial dyes, titanium dioxide or talc are reported.
Dose, Safety & Label Transparency55
The label states 30 mg per serving and names the B6 source. The serving exceeds the European adult daily upper limit of 12 mg.
Vitamin B6 Dose & Safety Policy
The serving contains 30 mg per serving of B6. That exceeds the European adult daily upper limit of 12 mg.
Label Transparency
The B6 source is named as pyridoxine hydrochloride.
Value65
The cost per mg of B6 is moderate.
Vitamin B6 Price Efficiency
The cost per mg of B6 is moderate.
Folate (L-5-Methyltetrahydrofolate) · 400 mcg OverallScore84
Each serving provides 400 mcg folate from L-5-Methyltetrahydrofolate; a DFE amount is not established. The cost per serving is high. L-5-Methyltetrahydrofolate is an active form that bypasses the MTHFR conversion step.
How this ingredient is rated
Active Ingredient Quality & Bioavailability91
L-5-Methyltetrahydrofolate is an active form that bypasses the MTHFR conversion step. The L designation identifies the active form; no branded source is identified.
Folate Form Hierarchy
L-5-Methyltetrahydrofolate is an active form that bypasses the MTHFR conversion step.
Patented Sources & Isomeric Purity
The L designation identifies the active form; no branded source is identified.
Dose, Safety & Label Transparency100
Each serving provides 400 mcg folate from L-5-Methyltetrahydrofolate; a DFE amount is not established.
Folate Dosage by Declared Basis
Each serving provides 400 mcg folate from L-5-Methyltetrahydrofolate; a DFE amount is not established.
Value40
The cost per serving is high.
Price per Bioavailable Serving
The cost per serving is high.
Alternative products
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- 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.
- Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
- The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
- The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
- Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
- The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
- Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
- Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
- The association between dietary mineral intake and bone mineral density: a cross-sectional study.
- Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
- Association between RBC folate and lumbar bone mineral density in postmenopausal women, a cross-sectional study from NHANES 2009-2018.
- Genetic variants modify the associations of concentrations of methylmalonic acid, vitamin B-12, vitamin B-6, and folate with bone mineral density.
- Adequate Intake and Supplementation of B Vitamins, in Particular Folic Acid, can Play a Protective Role in Bone Health.
- Relation of homocysteine, folate, and vitamin B12 to bone mineral density of postmenopausal women.
- 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.
- Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
- Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
- Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
- An update on magnesium and bone health.
- Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.