BioStacks
Kirkland Signature

B12 5000 mcg Cherry Flavor

1 Tablet · 300 servings · $0.07/serving

iHerbAmazon

Best for

Energy

Ingredients (1)

Vitamin B12

100%

Dose

5000 mcg

Target

250–5000 mcg

Form

Premium

Other Ingredients (9)

SucraloseSweetener

Dose context matters. As a trace excipient in a tablet coating or capsule, the amount is minimal and not a meaningful concern. The evidence below applies to the gram-level intakes typical of sweetened protein powders, pre-workouts, and drink mixes: a 2022 human trial (Suez et al., Cell) showed sucralose disrupts gut bacteria and worsens blood sugar control in healthy adults, and a 2023 study (Schiffman et al.) found that sucralose-6-acetate — a compound formed when sucralose is digested — was genotoxic to human cells in vitro. It remains an artificial sweetener with no nutritional purpose.

MannitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at higher doses. Supplement amounts are typically small, but individuals with IBS or sugar alcohol sensitivity may react even at low doses.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Natural Cherry FlavorFlavor

A flavoring derived from natural cherry sources

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

CrospovidoneDisintegrant

Cross-linked synthetic polymer used as a tablet disintegrant to help tablets break apart quickly in the stomach

Microcrystalline CelluloseBinder

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

Beetroot Juice PowderColorant

Natural red colorant and mild flavoring derived from beetroot; often spray-dried onto maltodextrin carrier

How to Take It

Best taken in the morning

Many people prefer it earlier in the day; there's no evidence timing changes anything. Absorption is fine with or without food.

With or without food

On the label

As a dietary supplement, dissolve one tablet daily under tongue for 30 seconds, then swallow.

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

Price Check

$21.99

$10$20$50

Near the median of 272 vitamin B12 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.

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