You're getting 5,000 IU of **Vitamin D3** per softgel — the top of the clinically studied maintenance range for supporting bone density, immune function, and mood regulation. The form is cholecalciferol, which raises and sustains blood levels significantly better than D2, and the softgel delivers it in olive oil so your body can absorb it with the fat it needs.

Vitamin D deficiency is one of the most common nutrient gaps worldwide, especially if you get limited sun exposure or live in a northern climate. At this dose, you're well-positioned to correct low levels and maintain the range associated with benefits across bone health, immune resilience, and muscle function.

One thing worth knowing: 5,000 IU sits above the official tolerable upper limit of 4,000 IU/day. Many practitioners use this dose safely for deficiency correction, but it's worth testing your blood levels periodically rather than supplementing indefinitely at this amount.

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BioStacks

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High Potency Vitamin D-3 5,000 IU

Capsule · 120 servings · $0.06/serving

85 / 100Excellent

Score Breakdown

Formulation
100
Safety
85
Final score
85/100

Ingredients (1)

Vitamin D5000 IU

Exceeds UL · Premium form

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Vitamin D125 mcg

833%

Other Ingredients

Fillers, coatings, and additives

5Safe

GelatinCapsule

Safe

Extra Virgin Olive OilCarrier

Safe

GlycerinHumectant

Safe

Safflower Seed OilCarrier

Safe

Purified WaterSolvent

Safe

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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.