VITAMIN D3
1000 IU
81/100
SUPPIE SCORE
82/100
EFFICACY
High
SAFETY
74/100
CLEANLINESS
What Does 1000 IU Do?
25 mcg colecalciferol provides a maintenance-range dose shown in reviews to raise and sustain 25(OH)D levels in many adults; evidence supports bone and deficiency-prevention outcomes at 800–2000 IU daily without requiring higher loading.
What blood test confirms vitamin D status before using this?
How does 1000 IU compare to daily needs for different age groups?
Can this be taken with other fat-soluble vitamins or medications?
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What Are the Benefits of 1000 IU?
Based on proven scientific research
Vitamin D status supportStrong
Bone health maintenanceStrong
Immune function supportModerate
Good For:
What Are the Side Effects of VITAMIN D3 1000 IU?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•1000 IU (25 mcg) colecalciferol is well below the 4000 IU/day upper limit with low hypercalcemia risk in healthy adults.
•Monitor serum 25(OH)D and calcium if using long-term or with calcium supplements.
•Evidence limited on use in pregnancy at this exact dose; follow medical advice.
•Rare GI upset or hypercalcemia possible at higher cumulative intakes.
Potential Side Effects
Negative Interactions
Allergens
Contains sucroseNatural orange flavor components
Inactive Ingredients
Xylitol
Low RiskMicrocrystalline cellulose
Low RiskCitric acid
Low RiskStearic acid
Low RiskMagnesium stearate
Low RiskNatural orange flavor wonf powder 177a147
Low RiskNat orange fl wonf #dabr166
Low RiskHyprolose
Low RiskDl-alpha-tocopherol
GoodStarch sodium octenyl succinate
Low RiskSucrose
Low RiskSodium ascorbate
GoodMedium chain triglycerides
Low RiskSilicon dioxide
Low RiskPotable water
Low RiskWhat Are the Ingredients in VITAMIN D3 1000 IU?
colecalciferol
25.0000 mcg
xylitol
microcrystalline cellulose
citric acid
stearic acid
magnesium stearate
Natural Orange Flavor WONF Powder 177a147
Nat Orange Fl Wonf #DABR166
hyprolose
dl-alpha-tocopherol
starch sodium octenyl succinate
sucrose
sodium ascorbate
medium chain triglycerides
silicon dioxide
potable water
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Dosage & Bioavailability
How the active doses and forms in 1000 IU compare to the research.
•Colecalciferol — 25.0000 mcg; sits at lower end of 800–2000 IU maintenance ranges used in RCTs for sustaining 25(OH)D above 50 nmol/L.
•Colecalciferol — 25 mcg daily; standard oral form with absorption enhanced by dietary fat but no specific branded bioavailability data disclosed.
Sources & References
40551736
Information from pubmed.ncbi.nlm.nih.gov
PMC11314300
Information from pmc.ncbi.nlm.nih.gov
38337676
Information from pubmed.ncbi.nlm.nih.gov
NBK532266
Information from www.ncbi.nlm.nih.gov
PMC12183072
Information from pmc.ncbi.nlm.nih.gov
VitaminD HealthProfessional
Information from ods.od.nih.gov
Frequently Asked Questions
Common questions about VITAMIN D3 1000 IU