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B-12 2500 mcg

21st Century
4.7
(9255 ratings)
Vitamin B12 2500 mcg
Product Image
Score 74.0

A high-dose, cost-effective B12 tablet (cyanocobalamin) providing strong support for energy and metabolic functions at an accessible price point.

Quantity: 110 Tablet(s)Servings size: 1 Tablet(s) (110 servings)
Selected goals:
Other goals:
Energy
Brain Health
Mood Support
Cognitive Support
Metabolism Boost

Score 74.0

A high-dose, cost-effective B12 tablet (cyanocobalamin) providing strong support for energy and metabolic functions at an accessible price point.

Quantity: 110, Dose: 1000mcgDose: 5000mcg, Quantity: 110
Analysis

21st Century's B-12 2500 mcg tablet is a standout for its cost-effectiveness, delivering a powerful dose of cyanocobalamin at a fraction of the cost of many alternatives. This product is ideal for individuals who require a higher daily intake of B12 or are looking for a very economical way to maintain their levels. Despite being a traditional tablet (which can have lower bioavailability compared to sublingual or active forms), the sheer quantity of B12 per serving aims to ensure sufficient absorption for most users. Its popularity and high review count attest to its perceived efficacy and affordability among consumers.

Pros
  • Very high dosage (2500 mcg) for robust B12 supplementation.
  • Excellent price per serving, offering great affordability.
  • Highly popular with a significant number of positive reviews.
  • Simple and convenient tablet form.
Cons
  • Uses cyanocobalamin, a synthetic form that requires bodily conversion.
  • Standard tablet absorption may be less efficient for some individuals compared to sublingual or liquid alternatives.
Warnings
  • Individuals with severely impaired B12 absorption may still benefit more from active or sublingual forms.
$8.99($0.08 per serving)
Amazon
$ 17.98
iHerb
$ 8.99
Ingredients
IngredientAmount per serving
Vitamin B12 (Cyanocobalamin) 2500 mcg
Gluten Free Adults 18–50
Categories
Vitamin B12 74.0
This Vitamin B12 product is notable for its very high dosage and exceptional affordability, making it a compelling option for those needing significant B12 intake.
Goals
Energy 75.0
The high 2500 mcg dosage of B12 is well-suited to significantly support cellular energy production, helping to effectively combat fatigue and enhance overall vitality for many users.
Brain Health 74.0
With a strong B12 concentration, this supplement provides robust support for nerve function and contributes to the maintenance of healthy brain processes.
Mood Support 74.0
B12 is crucial for neurotransmitter synthesis, and the elevated dose in this product offers enhanced support for mood regulation and emotional balance.
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Fully Active B12 1500 mcg

Doctor's Best
4.7
(30986 ratings)
Offers a superior, active form of B12 (Methylcobalamin) at a very competitive price per serving, providing excellent overall value.
93 Value

Methyl B-12 1000 mcg Lemon Flavor

Jarrow Formulas
4.7
(11077 ratings)
Provides Methylcobalamin, the active form, at a similar price per serving to the original, but with the added benefit of a more bioavailable form, offering superior value.
85 Value

Vitamin B-12 5000 mcg Fast Dissolve Strawberry Natural Flavor

Natrol
4.7
(44207 ratings)
Delivers a very high dose of Cyanocobalamin in a fast-dissolve form at the same price per serving, providing greater dosage and sublingual benefits for the cost.
95 Performance

Fully Active B12 1500 mcg

Doctor's Best
4.7
(30986 ratings)
Features Methylcobalamin, the active and highly bioavailable form of B12, generally preferred for superior absorption and efficacy.
98 Performance

BioActive Folate & Vitamin B12

Life Extension
4.8
(9998 ratings)
Combines Methylcobalamin with active Folate, providing synergistic benefits for energy and cellular health, a superior choice for comprehensive B vitamin support.
90 Performance

Chewable Fully Active B12 Chocolate Mint Flavor 1000 mcg

Doctor's Best
4.8
(1635 ratings)
Offers Methylcobalamin in a chewable format, which can enhance sublingual absorption, providing a higher quality and potentially more effective B12.