Bluebonnet
Vitamin D3 25 mcg (1000 IU)
9.18Superior
Price
Container
100 servings
Serving
1 Softgel
Brand Quality
8.79
Why this score
Testing practices
- Lot Tested
- Third-Party Lab Tested
- Transparent Batch-Specific COAs
- ISO 17025 Lab
Testing coverage
- Identity
- Purity
- Potency
- Heavy Metals
- Raw Ingredient Testing
Certifications
- NSF Certified
- USDA Organic Certified
Manufacturing standards
- cGMP Certified
- Made in USA
Innovation
- Clinically Studied Product
Active Ingredients
- 25 mcg
Vitamin D(1000 IU)
Ingredient research · Vitamin D
Vitamin D is a hormone-like nutrient that helps the body absorb calcium and maintain healthy bones and muscle function. Supplementation can reliably prevent or correct low vitamin D status, particularly when sun exposure is limited, while broader immune, cardiovascular, and metabolic benefits are less certain.
- Supports bone-density and fracture- or fall-related outcomes.
- Supports muscle-strength outcomes, including lower-limb strength.
- Supports glycemic-marker and insulin-sensitivity outcomes in studied metabolic populations.
- Supports respiratory-infection-risk outcomes across studied age groups.
Top References
- Effects of combined calcium and vitamin D supplementation on osteoporosis in postmenopausal women: a systematic review and meta-analysis of randomized controlled trials.
- 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
- Clinical review: The effect of vitamin D on falls: a systematic review and meta-analysis.
- Effect of Vitamin D Supplementation on Muscle Strength, Gait and Balance in Older Adults: A Systematic Review and Meta‐Analysis
- The effects of vitamin D on skeletal muscle strength, muscle mass, and muscle power: a systematic review and meta-analysis of randomized controlled trials.
- Effect of vitamin D supplementation on muscle strength: a systematic review and meta-analysis
- What is the impact of vitamin D supplementation on glycemic control in people with type-2 diabetes: a systematic review and meta-analysis of randomized controlled trails
- The Effect of Vitamin D Supplementation on Glycaemic Control in Women with Gestational Diabetes Mellitus: A Systematic Review and Meta-Analysis of Randomised Controlled Trials
- The Role of Vitamin D Oral Supplementation in Insulin Resistance in Women with Polycystic Ovary Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
- Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis.
- Vitamin D supplementation to prevent acute respiratory infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials.
- Vitamin D and Respiratory Tract Infections: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Ranking
Vitamin D Products97%
Inactive Ingredients
10 Ideal
- Bovine GelatinIdeal
- Safflower OilIdeal
- GlycerinIdeal
- Water, PurifiedIdeal
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