**Vitamin D3** at 5,000 IU per softgel puts you at the top of the clinically studied range (1,000–5,000 IU/day) for supporting bone health, immune function, and mood. The form is cholecalciferol — the D3 form your body produces from sunlight and absorbs far more efficiently than D2. With extra virgin olive oil as the carrier, you're getting a built-in fat source that helps your body absorb this fat-soluble vitamin without needing to time it with a meal.

At this dose, you're well-covered across vitamin D's broad range of roles — from calcium absorption and bone density to immune regulation and muscle function. Deficiency is extremely common, especially if you have limited sun exposure, darker skin, or live at higher latitudes, and 5,000 IU is the dose many practitioners recommend for people with low baseline levels.

This dose sits above the 4,000 IU tolerable upper limit set by health authorities, so it's worth checking your blood levels periodically to confirm you're in the optimal range and not overshooting. A 180-softgel bottle gives you a six-month supply at one per day.

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Doctor's Best

Vitamin D3 5000 IU

Capsule · 1 Softgel · 180 servings · $0.06/serving

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Best for

ImmuneDentalBone & Joint

Ingredients (1)

Vitamin D3

100%

Dose

5000 IU

Target

1000–5000 IU

Form

Premium

Other Ingredients (2)

Extra Virgin Olive OilCarrier

Cold-pressed olive oil used as a carrier and filler in softgel capsules for fat-soluble nutrients

SoftgelCapsule

One-piece gelatin capsule shell with a plasticizer (typically glycerin), used to encapsulate liquid or oil-based supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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