SPECIMEN #SPRING-V
Verified
B_VITAMINSSpring Valley
Vitamin B12 2500 mcg
Walmart's house brand B12 at rock-bottom prices. But cyanocobalamin needs conversion that some people can't do well. A $5 jar of methylcobalamin B12 from Jarrow is a small upgrade that actually matters.
7.0/10
VERY GOODB12 at 2500mcg is above optimal (1000mcg) and in the diminishing returns zone, but excess B12 is harmlessly excreted so this isn't a safety concern. The main drawback is the cyanocobalamin form, which requires conversion and some people (MTHFR variants) convert poorly. Methylcobalamin or hydroxocobalamin would be superior forms. As a basic budget B12, it works for most people but misses the mark on form quality.
1 ingredientTablets120 servings
Evidence
7.0
Dosing
10.0
SynergyN/A (single ingredient)
What We Like
- Incredibly cheap. Pennies per serving.
- Available at every Walmart.
- 2500 mcg is an adequate B12 dose.
Watch Out For
- Cyanocobalamin is the cheapest, least bioactive B12 form.
- No complementary B-vitamins for synergy.
- 120 tablets for $5 sounds good until you realize the quality matches the price.
What We Analyzed
Verified Supplement Facts
Every dose checked against clinical research
We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.
1 ingredients analyzed
Source: Official product page
Ingredient Breakdown
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
In our database (click to learn more) Not yet reviewed
Our Analysis
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