BioStacks
Life Extension

Vitamin D3 5,000 IU With Sea Iodine

1 Capsule · 60 servings · $0.16/serving

67 / 100Good

Score Breakdown

Formulation
100
Safety
67
Final score
67/100

Ingredients (2)

Vitamin D

100%

Dose

5000 IU

Target

1000–5000 IU

Form

Premium

Iodine

100%

Dose

1000 mcg

Target

150–500 mcg

Form

Premium

Other Ingredients (6)

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

StarchBinder

Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in 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.