BioStacks
MegaFood

Vitamin D3 1000 IU

1 Tablet · 60 servings · $0.33/serving

iHerbAmazon

Best for

ImmuneDentalBone & Joint

Ingredients (8)

Vitamin D3

100%

Dose

1000 IU

Target

1000–5000 IU

Form

Premium

Food Blend

14%

Dose

724 mg

Target

5000–15000 mg

Form

—

Organic Beet

Amount not found

Organic Broccoli

Amount not found

Organic Brown Rice

Amount not found

Other Ingredients (8)

Nutritional YeastBase

Can trigger reactions in people with yeast sensitivity or Candida overgrowth. High in tyramine — may interact with MAOIs and cause hypertensive crisis. High in purines — may worsen gout. Can cause bloating and GI discomfort.

Rice ProteinFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports have documented elevated arsenic in rice products). Used as a cheap filler. Incomplete amino acid profile adds no meaningful protein benefit at excipient doses.

Rice ProteinFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports have documented elevated arsenic in rice products). Used as a cheap filler. Incomplete amino acid profile adds no meaningful protein benefit at excipient doses.

Autolyzed YeastFlavor

Yeast that has been broken down to release naturally occurring amino acids and flavor compounds

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

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

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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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