A daily multivitamin covering 26 vitamins and minerals, mostly at RDA levels. The bright spot is **Vitamin D3** at 1,000 IU — right at the minimum clinical dose for maintaining adequate blood levels, and in the preferred cholecalciferol form. Beyond that, most nutrients sit at basic daily value amounts, which means you're covered for preventing outright deficiency but not reaching the higher ranges used in clinical research for specific health goals.

Nearly every mineral uses a budget form: **Magnesium** as oxide (roughly 4% absorption), **Zinc** as oxide, **Selenium** as sodium selenate, and **Copper** as sulfate. The B vitamins follow the same pattern — **B12** as cyanocobalamin, **Folate** as synthetic folic acid, and **Vitamin E** in the synthetic dl-alpha form, which your body uses about half as efficiently as the natural version. You do get several built-in synergies (Vitamin C with iron, D3 with calcium, B12 with folate), but the doses are modest enough that the practical benefit is limited.

The biggest gap is **Magnesium** at just 50 mg — about 25% of the RDA — in the least absorbable form available. If you're looking for meaningful magnesium support, you'd need a separate supplement alongside this one.

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BioStacks

21st Century

Sentry Adults

Tablet · 300 servings · $0.06/serving

16 / 100Very Poor

Score Breakdown

Formulation
61
Safety
25
Final score
16/100

Ingredients (26)

25 scored · 1 not scored

Vitamin D31000 IU

Within effective range · Premium form

Iodine150 mcg

Within effective range · Premium form

Molybdenum45 mcg

Within effective range

Niacin20 mg

80% of effective dose

Biotin30 mcg

3% of effective dose

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Vitamin A1050 mcg

117%

Vitamin C60 mg

67%

Vitamin D325 mcg

167%

Vitamin E13.5 mg

90%

Vitamin K25 mcg

21%

Other Ingredients

Fillers, coatings, and additives

13Safe1Caution2Avoid

FD&C Yellow No. 6Colorant

Avoid

Titanium DioxideColorant

Avoid

TalcAnti-caking

Caution

MonoglyceridesEmulsifier

Safe

Magnesium StearateLubricant

Safe

MonoglyceridesEmulsifier

Safe

PEG/PVA CopolymerCoating

Safe

Polyvinyl AlcoholCoating

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.