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  3. Vitamin D vs Iodine

Vitamin D vs Iodine

TL;DR

Quick comparison: Vitamin D and Iodine have 0 overlapping categories and appear together in 31 products.

  • •Choose Vitamin D if: Fat-soluble secosteroid vitamin synthesized in skin upon UVB exposure. Functions...
  • •Choose Iodine if: Essential trace mineral critical for thyroid hormone synthesis....
  • •Take both if: You want comprehensive coverage across 0 shared categories.
564 products
analyzed in our comprehensive supplement database
Source: MoodStack Database (2026)

Side-by-Side Comparison

FeatureVitamin DIodine
Typevitaminmineral
Common Dosage600-800 IU daily150 mcg daily
Best BioavailabilityCalcifediol (25-OH-D₃) (85%)Potassium iodide (95%)
Categories70
Available Products00

Vitamin D

Typevitamin
Common Dosage600-800 IU daily
Best BioavailabilityCalcifediol (25-OH-D₃) (85%)
Categories7
Available Products0

Iodine

Typemineral
Common Dosage150 mcg daily
Best BioavailabilityPotassium iodide (95%)
Categories0
Available Products0

Can You Take Both?

Yes, Vitamin D and Iodine can typically be taken together. In fact, we found 31 products in our database that contain both supplements, suggesting they complement each other well.

Key Differences

Vitamin D

Fat-soluble secosteroid vitamin synthesized in skin upon UVB exposure. Functions as a hormone affecting calcium homeostasis and bone health.

Categories:

Muscle GainVitalityLongevityImmunityStress & MoodHeart HealthHormonal Health

Common Forms:

  • • Calcifediol (25-OH-D₃) (85% bioavailability)
  • • D3 (80% bioavailability)
  • • D2 (70% bioavailability)

Iodine

Essential trace mineral critical for thyroid hormone synthesis.

Categories:

Common Forms:

  • • Potassium iodide (95% bioavailability)
  • • Sodium iodide (90% bioavailability)
  • • Kelp (seaweed) (80% bioavailability)

Products Containing Both Vitamin D and Iodine

We found 12 products that combine both supplements:

Multi for Him Tablets

Multi for Him Tablets

Nature Made

$11.49Score: 86/100
Essential Capsules

Essential Capsules

Blueprint

Score: 86/100
Prenatal Multi + DHA Softgels

Prenatal Multi + DHA Softgels

Nature Made

$22.99Score: 86/100
Multi for Him 50+ Tablets

Multi for Him 50+ Tablets

Nature Made

$12.99Score: 86/100
Essential Multivitamin

Essential Multivitamin

Momentous

$39.95Score: 86/100
Multi for Her 50+ Tablets

Multi for Her 50+ Tablets

Nature Made

$12.99Score: 86/100
Daily Multi Vitamins & Minerals

Daily Multi Vitamins & Minerals

Kirkland Signature

$12.99Score: 85/100
Elite Multivitamin

Elite Multivitamin

Gorilla Mind

$44.99Score: 85/100
Multi for Her Tablets

Multi for Her Tablets

Nature Made

$12.49Score: 84/100
Multivitamin Gummies

Multivitamin Gummies

Nature Made

$13.49Score: 84/100
Multivitamin Complete Tablets with Iron

Multivitamin Complete Tablets with Iron

Nature Made

$9.99Score: 83/100
Adult 50+ Mature Multi Vitamins & Minerals

Adult 50+ Mature Multi Vitamins & Minerals

Kirkland Signature

$12.99Score: 82/100

Frequently Asked Questions

What is the difference between Vitamin D and Iodine?

Vitamin D and Iodine are both important supplements with distinct properties. Vitamin D Fat-soluble secosteroid vitamin synthesized in skin upon UVB exposure. Functions as a hormone affecting calcium homeostasis and bone health., while Iodine Essential trace mineral critical for thyroid hormone synthesis..

Can I take Vitamin D and Iodine together?

Based on our analysis of 31 products that contain both, yes, Vitamin D and Iodine can typically be taken together. However, always consult with a healthcare provider before combining supplements.

Which is more popular: Vitamin D or Iodine?

In our database of 564 products, Vitamin D appears in 115 products, while Iodine appears in 34 products.

Related Comparisons & Products

What is Vitamin D?What is Iodine?Vitamin B6 vs IodineFolate vs IodineVitamin D vs Vitamin B2Essential Capsules (contains both)Essential Multivitamin (contains both)Multi for Him Tablets (contains both)

Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement regimen.