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Vitamin B12 100 mcg

Solgar

4.8
(112 ratings)
Vitamin B12 100 mcg
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Score 45.0

An economical, low-dose cyanocobalamin B12 supplement best suited for basic maintenance, but limited in therapeutic efficacy compared to higher-dose or active-form alternatives for energy and cognitive goals.

Quantity: 100 Tablet(s)Servings size: 1 Tablet(s) (100 servings)
Selected goals:
Other goals:
Energy
Brain Health
Mood Support
Cognitive Support
Metabolism Boost

Score 45.0

An economical, low-dose cyanocobalamin B12 supplement best suited for basic maintenance, but limited in therapeutic efficacy compared to higher-dose or active-form alternatives for energy and cognitive goals.

Analysis

Solgar's Vitamin B12 100 mcg offers a straightforward and budget-friendly approach to B12 supplementation. It utilizes cyanocobalamin, the synthetic form of Vitamin B12, which needs to be converted by the body into its active forms (methylcobalamin and adenosylcobalamin). At 100 mcg per serving, the dosage is low, primarily suitable for foundational daily intake above the RDA but generally insufficient for individuals with significant B12 deficiencies or those seeking pronounced therapeutic effects for energy, cognitive, or mood support. Nutritionists often recommend methylcobalamin due to its superior bioavailability and direct utilization, especially for neurological benefits. While its low price per serving is a significant pro, the efficacy for the specified goals is hampered by the dosage and form when compared to many high-potency or active-form alternatives.
Pros
  • Extremely affordable price per serving.
  • Simple, single-ingredient formula.
Cons
  • Uses cyanocobalamin, a synthetic form that requires conversion in the body and is less bioavailable than methylcobalamin.
  • Very low dosage (100mcg) is insufficient for addressing significant deficiencies or providing strong therapeutic effects for energy and cognitive goals.
  • Lower review count compared to many popular B12 alternatives.
Warnings
  • Individuals with MTHFR gene mutations may have difficulty converting cyanocobalamin to its active forms and may benefit more from methylcobalamin.
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$6.49($0.06 per serving)
Vitacost
$ 6.49
Pure Formulas
$ 6.52
Daily Vita
$ 7.20
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Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

IngredientAmount per serving
Vitamin B12
100 mcg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Halal Vegetarian
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Categories

As a Vitamin B12 product, its low dosage and less active form (cyanocobalamin) limit its effectiveness in the category, particularly when compared to the numerous higher-potency or methylcobalamin alternatives available.

Goals

Provides basic B12 support for cellular energy, but the low dose and cyanocobalamin form are unlikely to provide a noticeable energy boost for those seeking significant improvements, especially compared to higher potency options.
B12 plays a role in various metabolic pathways, but 100mcg of cyanocobalamin offers a very modest contribution to metabolic processes and is unlikely to provide a noticeable 'boost'.
B12 is vital for neurological health, yet 100mcg of cyanocobalamin offers minimal support for significant brain health benefits, as methylcobalamin is often preferred by nutritionists for its direct utilization in the brain.
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Nature's Bounty
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(65813 ratings)
Offers 10 times the B12 dosage (Cyanocobalamin) at a lower price per serving, representing significant cost savings for a higher dose.
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Doctor's Best
4.7
(30986 ratings)
Provides an excellent price-to-quality ratio, offering a high dose of the superior Methylcobalamin form for a very competitive price, making it a standout value.
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Sundown
4.7
(775 ratings)
Offers 5 times the B12 dosage (Cyanocobalamin) at a lower price per serving, providing much better value for a basic B12 supplement.
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Fully Active B12 1500 mcg

Doctor's Best
4.7
(30986 ratings)
Features a much higher dose of the superior Methylcobalamin form, ideal for those seeking better bioavailability and more potent B12 support.
88 Performance

Methyl B-12 1000 mcg Lemon Flavor

Jarrow Formulas
4.7
(11077 ratings)
Offers a significantly higher dose of Methylcobalamin, a more bioavailable B12 form, in a convenient lozenge that aids absorption.
70 Performance

B 100 Complex

Spring Valley
4.7
(401 ratings)
Provides a comprehensive B-complex including B12, addressing overall B-vitamin needs more broadly and synergistically than a single B12 supplement.
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