BioStacks
One A Day

Men's 50+, Complete Multivitamin

One tablet

iHerbAmazon

Best for

ImmuneGeneral HealthHormones

Ingredients (22)

Molybdenum

100%

Dose

90 mcg

Target

45–75 mcg

Form

—

Vitamin B6

100%

Dose

6 mg

Target

1.3–25 mg

Form

—

Niacin

80%

Dose

20 mg

Target

25–500 mg

Form

—

Pantothenic Acid

30%

Dose

15 mg

Target

50–500 mg

Form

—

Biotin

3%

Dose

30 mcg

Target

1000–5000 mcg

Form

—

Other Ingredients (33)

Artificial ColorsColorant

May trigger hyperactivity in sensitive children; potential link to allergic reactions

Titanium DioxideColorant

Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.

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.

BiotinFood

Vitamin B7, a water-soluble B-vitamin.

Folic AcidVitamin

Synthetic form of vitamin B9 used for fortification — supports red blood cell formation and neural tube development. Pharmacologically distinct from the natural/active form (5-methyltetrahydrofolate, methylfolate).

LycopeneAntioxidant

A red carotenoid pigment/antioxidant, typically sourced from tomato.

Magnesium OxideMineral Source

An inorganic magnesium salt used as a magnesium source or bulking mineral.

Polyethylene Glycol (Coating)Coating

A polyether polymer used as a tablet coating and plasticizer

How to Take It

Take it anytime

No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamins A, D and E in it absorb poorly without one.

With a meal containing fat
Space it a couple of hours from Iron and Calcium

On the label

Adults: One tablet daily, with food.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$21.47

$10$20$50

Near the median of 798 multivitamins

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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