At 5,000 IU per softgel, you're getting **Vitamin D3** right at the top of the clinically studied range (1,000–5,000 IU/day) — enough to support bone density, immune function, and healthy mood. The form is cholecalciferol (D3), which raises blood levels far more effectively than the D2 alternative. The softgel includes safflower oil, giving you a built-in fat source to help absorption since D3 is fat-soluble.

This dose covers a wide range of health goals — your bones, immune system, muscles, and hormonal balance all depend on adequate vitamin D, and deficiency is extremely common, especially if you get limited sun exposure or live in a northern climate.

One thing to know: 5,000 IU exceeds the tolerable upper limit of 4,000 IU set by health authorities. While many practitioners recommend this dose for people with low baseline levels, it's worth getting your blood levels checked periodically to make sure you're in the optimal range rather than overshooting it.

BioStacks
California Gold Nutrition

Vitamin D3 125 mcg (5,000 IU)

Capsule · 1 Softgel · 90 servings · $0.06/serving

iHerbAmazon

Best for

ImmuneDentalBone & Joint

Ingredients (1)

Vitamin D

100%

Dose

5000 IU

Target

1000–5000 IU

Form

Premium

Other Ingredients (4)

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

Safflower Seed OilCarrier

Light, neutral oil from safflower seeds used as a carrier in softgels for fat-soluble nutrients

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

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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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