Thorne
D-1,000
88/100
SUPPIE SCORE
95/100
EFFICACY
Low
SAFETY
82/100
CLEANLINESS
What Does D-1,000 Do?
Thorne D-1,000 offers an excellent, evidence-backed 1,000 IU dose of bioavailable vitamin D3 for bone, immune, and muscle health. Formulation is clean with minimal excipients; overall very safe for daily use in deficient individuals, with no major concerns.
What are the main benefits of vitamin D3 supplementation?
How does 1,000 IU of vitamin D3 compare to daily recommended intake?
Who might benefit most from taking Thorne D-1,000?
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What Are the Benefits of D-1,000?
Based on proven scientific research
Bone HealthVery strong
Immune FunctionStrong
Muscle SupportStrong
Cardiovascular HealthModerate
Good For:
What Are the Side Effects of Thorne D-1,000?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Vitamin D3 at 1,000 IU is well within safe daily limits (up to 4,000 IU for adults per NIH guidelines), minimizing toxicity risk.
•No known significant drug interactions for this low-dose formulation, though monitor with thiazide diuretics or calcium supplements.
•Generally safe for healthy adults; suitable for pregnancy at this dose but consult physician for personalized needs.
•Low allergen potential; free from common allergens like gluten, dairy, soy, and nuts as per Thorne's manufacturing standards.
•Rare side effects like hypercalcemia possible only if exceeding recommended intake or with pre-existing conditions like hyperparathyroidism.
•High-quality Thorne manufacturing reduces contamination risks; third-party tested for purity.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Low Risk
Low Risk
Low Risk
Low Risk
What Are the Ingredients in Thorne D-1,000?
Vitamin D3 (as Cholecalciferol)
1,000 IU
Microcrystalline Cellulose
Hypromellose (derived from cellulose) capsule
Leucine
Silicon Dioxide
Sources & References
Frequently Asked Questions
Common questions about Thorne D-1,000