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B-12 5000 mcg

21st Century
4.7
(2421 ratings)
Vitamin B12 5000 mcg
Product Image
Score 75.0

A high-dose (5000 mcg) cyanocobalamin B12 tablet that is very affordable, providing good general support despite using the synthetic B12 form.

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 75.0

A high-dose (5000 mcg) cyanocobalamin B12 tablet that is very affordable, providing good general support despite using the synthetic B12 form.

Dose: 1000mcg, Quantity: 110Dose: 500mcg, Quantity: 110Dose: 2500mcg, Quantity: 110
Analysis

This 21st Century product offers a very high dose of Vitamin B12 (5000 mcg) at an exceptionally low price, making it a budget-friendly option for those seeking a potent B12 supplement. While the high dosage is certainly advantageous for the stated goals of energy, brain health, and mood support, it uses cyanocobalamin, the synthetic form. Although many people can convert cyanocobalamin effectively, it is not the most bioavailable form and may be less efficient for individuals with methylation issues. Its popularity suggests widespread acceptance despite the form.

Pros
  • Very high dosage (5000 mcg) provides strong B12 support.
  • Extremely affordable price per serving for such a high dose.
  • High review count indicates widespread acceptance and effectiveness for many users.
Cons
  • Uses cyanocobalamin, a synthetic form that requires conversion in the body.
  • Tablet form offers standard absorption, not enhanced.
Warnings
  • Individuals with impaired methylation pathways might find methylcobalamin to be a more effective form for optimal utilization.
$8.47($0.07 per serving)
Amazon
$ 12.49
Pure Formulas
$ 8.47
iHerb
$ 12.49
Ingredients
IngredientAmount per serving
Vitamin B12 (Cyanocobalamin) 5000 mcg
Gluten Free Adults 18–50
Categories
Vitamin B12 75.0
As a Vitamin B12 product, it offers a very high dose at an attractive price, making it a good option for general supplementation, though the use of cyanocobalamin positions it below products with active B12 forms.
Goals
Metabolism Boost 80.0
The high dose effectively supports metabolic pathways where B12 is needed for energy production, even if it's cyanocobalamin, as the body can still convert a significant amount for metabolic processes.
Energy 78.0
The 5000 mcg dosage is very strong for energy support. However, being cyanocobalamin means it might take longer for the body to convert and utilize compared to methylcobalamin, potentially offering a slightly less immediate or potent 'boost' for some.
Brain Health 78.0
The high dose provides ample B12 for brain processes, but the conversion step required for cyanocobalamin means it's not as directly available as methylcobalamin for optimal neurological support and function.
95 Value

Fully Active B12 1500 mcg

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Vitamin B-12 5000 mcg Fast Dissolve Strawberry Natural Flavor

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Offers the same very high dose of Cyanocobalamin in a fast-dissolve form at a slightly higher price per serving, but with enhanced absorption benefits compared to a standard tablet.
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B12 500 mcg

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B-12 1000 mcg

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78 Budget

B-12 500 mcg

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4.7
(10877 ratings)
A highly affordable Cyanocobalamin B12 option, excellent for budget-conscious consumers, though at a lower dose.
95 Value

Fully Active B12 1500 mcg

Doctor's Best
4.7
(30986 ratings)
Delivers the superior Methylcobalamin form at the same price per serving as the original, making it an exceptional value for active B12.
93 Value

Methyl B-12 1000 mcg Lemon Flavor

Jarrow Formulas
4.7
(11077 ratings)
Provides Methylcobalamin, the active form, at a very good price per serving, offering superior quality B12 for slightly more cost.
85 Value

Vitamin B-12 5000 mcg Fast Dissolve Strawberry Natural Flavor

Natrol
4.7
(44207 ratings)
Offers the same very high dose of Cyanocobalamin in a fast-dissolve form at a slightly higher price per serving, but with enhanced absorption benefits compared to a standard tablet.
95 Performance

Fully Active B12 1500 mcg

Doctor's Best
4.7
(30986 ratings)
Features Methylcobalamin, the active and highly bioavailable form of B12, offering superior absorption and efficacy, even at a lower nominal dose than the original's Cyanocobalamin.
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, representing a more advanced B vitamin option.
90 Performance

Chewable Fully Active B12 Chocolate Mint Flavor 1000 mcg

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