Product analysis
High Potency D3 5000 IU offers a focused way to fill low vitamin D intake and support normal bone, muscle and immune functions.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality100
Vitamin D uses the preferred D3 form. The single-ingredient formula makes its source straightforward to identify.
Ingredient Transparency100
The vitamin D amount and form are clearly stated. That makes comparisons with other vitamin D supplements straightforward.
Value For Money100
The serving offers good value for its vitamin D content. Its simple formula makes clear which nutrient you are paying for.
Customer Satisfaction91
Customers report very high satisfaction across many ratings. Their feedback does not establish a need for the same amount in everyone.
Product Focus77
The formula is narrowly focused on vitamin D nutrition. Its substantial amount does not establish greater benefit when vitamin D needs are already met.
- Format
Softgel - Container
- 100 Softgel(s)
- Per serving
- $0.07
- Customer rating
- 4.8 · 5,227 ratings
Goals
Vitamin D contributes toward nutritional needs related to bone and mineral metabolism when intake is inadequate. The declared serving is a nutritional contribution, not evidence of greater benefit above adequate intake.
How this product is rated for Everyday Health
Ingredient fit92
Goal fit
Dose adequacy
Pathways57
Depth
Breadth
Evidence82
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Vitamin D provides a nutrient involved in normal immune regulation. Its value includes filling low intake, but routine supplementation does not establish prevention of respiratory infections. Deficiency correction is a different situation from routine prevention, and the larger amount does not imply greater immune protection.
How this product is rated for Immunity
Ingredient fit92
Goal fit
Dose adequacy
Pathways60
Depth
Breadth
Evidence100
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Vitamin D may be relevant to testosterone in initially deficient men, including the selected overweight population described in the supplied findings. A healthy-men trial found no total-testosterone effect, so routine supplementation does not establish an increase when vitamin D intake is adequate. The D3 form does not resolve that difference between populations.
How this product is rated for Testosterone Support
Ingredient fit92
Goal fit
Dose adequacy
Pathways0
Depth
Breadth
Evidence81
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Vitamin D helps maintain bone and muscle function when deficiency is corrected. Supplementation has not shown the same benefit in adults with adequate levels, and these facts do not establish slower aging.
How this product is rated for Longevity
Ingredient fit92
Goal fit
Dose adequacy
Pathways0
Depth
Breadth
Evidence83
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Vitamin D participates in inflammatory signalling, with mixed biomarker findings rather than established broad clinical benefit. A large trial found no improvement at one year; a later older-adult analysis found a temporary CRP reduction that did not persist. The 125 mcg per serving meets the saved exposure comparison, without establishing greater benefit from larger amounts or a repeated daily regimen.
How this product is rated for Inflammation
Ingredient fit92
Goal fit
Dose adequacy
Pathways57
Depth
Breadth
Evidence93
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Vitamin D can help address low intake associated with muscle weakness in severe deficiency. This is distinct from a routine performance boost: benefits in nutrient-replete adults and improved aerobic capacity are not established. The selected serving supplies 125 mcg, a substantial nutrient amount whose retained contribution does not establish greater benefit or suitability. No direct exercise-performance area is represented in the saved pathway findings.
How this product is rated for Fitness
Ingredient fit92
Goal fit
Dose adequacy
Pathways0
Depth
Breadth
Evidence69
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Vitamin D can be relevant to fatigue in vitamin-D-deficient adults, but that evidence comes from a selected treatment setting. The supplied D3 serving meets the saved amount comparison without establishing routine energy improvement in people with adequate vitamin D. The treatment trial does not validate this serving as a fatigue regimen.
How this product is rated for Energy
Ingredient fit92
Goal fit
Dose adequacy
Pathways0
Depth
Breadth
Evidence95
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin D3 (Cholecalciferol) | 5000 IU |
How this ingredient is rated
Active Ingredient Quality & Bioavailability87
Vitamin D3 vs. D2 Superiority
Sourcing and Active Marker Disclosure
Dose, Safety & Label Transparency100
Daily Dosage Appropriateness
Excipient and Additive Purity
Purity and Quality Certification
Value100
Price per 1,000 IU Efficiency
Alternative products
Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Effect of Vitamin D Supplementation on Fatigue in Multiple Sclerosis: A Systematic Review and Meta-Analysis.
- Vitamin D Supplementation in Adolescents and Young Adults With Juvenile Systemic Lupus Erythematosus for Improvement in Disease Activity and Fatigue Scores: A Randomized, Double-Blind, Placebo-Controlled Trial.
- Vitamin D in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome After COVID-19 or Vaccination: A Randomized Controlled Trial.
- The effects of vitamin D supplementation on disease activity and fatigue in Libyan rheumatoid arthritis patients.
- The effect of home-based aerobic training and vitamin D supplementation on fatigue and quality of life in patients with multiple sclerosis during COVID-19 outbreak.
- Vitamin D supplementation for prevention of mortality in adults.
- Effect of vitamin D on gastrointestinal symptoms and health-related quality of life in irritable bowel syndrome patients: a randomized double-blind clinical trial.
- The impact of vitamin D administration on mortality in COVID-19 patients: a systematic review and meta-analysis of randomized controlled trials.
- Vitamin D Status and Mortality: A Systematic Review of Observational Studies.
- Meta-analysis of long-term vitamin D supplementation on overall mortality.
- Effect of Calcifediol on Physical Performance and Muscle Strength Parameters: A Systematic Review and Meta-Analysis.
- Effects of vitamin D supplementation on upper and lower body muscle strength levels in healthy individuals. A systematic review with meta-analysis.
- Influence of Sunlight and Oral D3 Supplementation on Serum 25(OH)D Concentration and Exercise Performance in Elite Soccer Players.
- Effects of Vitamin D Supplementation in Elite Athletes: A Systematic Review.
- Association between serum vitamin D levels and cardiorespiratory fitness in the adult population of the USA.
- Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis.
- Association Between Vitamin D and Influenza: Meta-Analysis and Systematic Review of Randomized Controlled Trials.
- Vitamin D3 and deconvoluting a rash.
- Effect of vitamin D3 supplementation on cellular immunity and inflammatory markers in COVID-19 patients admitted to the ICU.
- Current opinion on the role of vitamin D supplementation in respiratory infections and asthma/COPD exacerbations: A need to establish publication guidelines for overcoming the unpublished data.