Thyroid Support Supplement Review
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin B12 (as Methylcobalamin) | 1000.0 mcg | 41667% |
| Iodine (As Potassium Iodide) | 300.0 mcg | 200% |
| Zinc (as Zinc Citrate) | 20.0 mg | 182% |
| Selenium (as Sodium Selenite) | 200.0 mcg | 364% |
| Copper (As Cupric Sulfate Pentahydrate) | 400.0 mcg | 44% |
| Manganese (As Manganese Sulfate Monohydrate) | 4.0 mg | 174% |
| Molybdenum (As Sodium Molybdate Dihydrate) | 100.0 mcg | 222% |
| Day To Day Thyroid Support Blend | 800.0 mg | † |
| BioPerine® Black Pepper Extract (Piper Nigrum) (Fruit) | 10.0 mg | † |
Bioavailability Very Good
Absorption Rating
- Vitamin B12 (as Methylcobalamin) Good
- Iodine (As Potassium Iodide) Good
- Zinc (as Zinc Citrate) Good
- Selenium (as Sodium Selenite) Fair
- Copper (As Cupric Sulfate Pentahydrate) Fair
- Manganese (As Manganese Sulfate Monohydrate) Good
- Molybdenum (As Sodium Molybdate Dihydrate) Good
- Day To Day Thyroid Support Blend Fair
- BioPerine® Black Pepper Extract (Piper Nigrum) (Fruit) Good
Other Ingredients Excellent
Fillers & Additives
- Vegetable Cellulose (Capsule)
- Microcrystalline Cellulose
- Silicon Dioxide
- Vegetable Magnesium Stearate
Efficacy Very Good
Dosage Analysis
- Vitamin B12 (as Methylcobalamin) 1000.0 mcg Effective
- Iodine (As Potassium Iodide) 300.0 mcg High
- Zinc (as Zinc Citrate) 20.0 mg Effective
- Selenium (as Sodium Selenite) 200.0 mcg Effective
- Copper (As Cupric Sulfate Pentahydrate) 400.0 mcg Under-dosed
- Manganese (As Manganese Sulfate Monohydrate) 4.0 mg Effective
- Molybdenum (As Sodium Molybdate Dihydrate) 100.0 mcg Effective
- Day To Day Thyroid Support Blend 800.0 mg High
- BioPerine® Black Pepper Extract (Piper Nigrum) (Fruit) 10.0 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin B12 (as Methylcobalamin) | 1000.0 mcg | 41667% |
| Iodine (As Potassium Iodide) | 300.0 mcg | 200% |
| Zinc (as Zinc Citrate) | 20.0 mg | 182% |
| Selenium (as Sodium Selenite) | 200.0 mcg | 364% |
| Copper (As Cupric Sulfate Pentahydrate) | 400.0 mcg | 44% |
| Manganese (As Manganese Sulfate Monohydrate) | 4.0 mg | 174% |
| Molybdenum (As Sodium Molybdate Dihydrate) | 100.0 mcg | 222% |
| Day To Day Thyroid Support Blend | 800.0 mg | † |
| BioPerine® Black Pepper Extract (Piper Nigrum) (Fruit) | 10.0 mg | † |
Other Ingredients
Is Best Naturals Thyroid Support Supplement a good supplement?
Best Naturals Thyroid Support Supplement received a product quality score of 91/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 9 active ingredients with 45 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Best Naturals, holds a brand trust score of 74/100 with 1 verified certifications including Consumerlab.
What are the ingredients in Best Naturals Thyroid Support Supplement?
Best Naturals Thyroid Support Supplement contains 9 active ingredients: Vitamin B12 (as Methylcobalamin) (1000.0 mcg), Iodine (As Potassium Iodide) (300.0 mcg), Zinc (as Zinc Citrate) (20.0 mg), Selenium (as Sodium Selenite) (200.0 mcg), Copper (As Cupric Sulfate Pentahydrate) (400.0 mcg), Manganese (As Manganese Sulfate Monohydrate) (4.0 mg), and 3 more. Notable high-dose ingredients include Vitamin B12 at 41667% DV, Selenium at 364% DV, Molybdenum at 222% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is Best Naturals Thyroid Support Supplement safe to take?
Best Naturals Thyroid Support Supplement has been analyzed for ingredient safety across all its components. All 4 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.
Is Best Naturals a trustworthy supplement brand?
Best Naturals receives a brand trust score of 74/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2012 and headquartered in Piscataway, New Jersey, USA, the company offers 129 products in their lineup. They hold 1 verified certifications including Consumerlab. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Best Naturals has 2 historical regulatory incidents on record, which are factored into the trust score.
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