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Sports Research

Sports Research Vitamin B12 Methylcobalamin 2000mcg

4.8· 324 Amazon reviews
$24.95$22.45with Subscribe & Save

$0.21/serving

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Price verified Jul 18, 2026

As an Amazon Associate, we earn from qualifying purchases · Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use

Our verdict

2000mcg methylcobalamin per serving; 120 capsules per bottle of Methylcobalamin (Vitamin B12) per liquid veggie capsule from Sports Research. Best for vegans, vegetarians, and anyone with B12 absorption concerns who…

Third-Party TestedVegan CertifiedGluten-FreeSoy-FreeCarrageenan-Free

Why we recommend this

A high-dose, bioavailable methylcobalamin supplement in a clean, carrageenan-free liquid veggie capsule — well-positioned for vegans and vegetarians who are at highest risk of B12 deficiency. The 4.8-star rating across 324 reviews reflects consistent customer satisfaction with a product that gets both the form and dose right.

Check for interactions

Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.

Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.

What to watch out for

While methylcobalamin is the preferred form, the liquid capsule format is more susceptible to heat and pressure damage during shipping or storage than hard-shell or sublingual formats. The high dose (2000mcg) is appropriate for those with absorption issues but unnecessary for individuals with adequate dietary B12 intake.

Dose & form

Serving
2000mcg methylcobalamin per serving; 120 capsules per bottle
Form
Liquid Veggie Capsule
Clinical range
500-2,000 mcg daily (methylcobalamin)
Dose adequacy
Therapeutic
Supply
120 servings · $0.21/serving
UPC
023249093602

Who it's best for

Vegans, vegetarians, and anyone with B12 absorption concerns who want the active methylcobalamin form in a liquid veggie capsule with coconut MCT oil

Who should skip it

Users who prefer sublingual B12 drops or tablets for faster-acting delivery over standard oral capsules

Pros

  • Methylcobalamin is the active, bioavailable form of B12 — no conversion needed by the body compared to cyanocobalamin
  • 2000mcg per serving is in the clinical repletion range, providing a meaningful dose for those with absorption issues
  • Liquid veggie capsule format is carrageenan-free and dissolves more readily than hard-shell capsules
  • 120-capsule bottle provides a 4-month supply at one capsule per day, offering strong value

Cons

  • MCT oil from coconut may not be suitable for individuals with coconut allergies
  • Liquid capsules require careful storage to prevent leakage in heat
  • Does not include cofactors like folate or B6 that work synergistically with B12 metabolism

What customers say

4.8★ across 324 Amazon reviews. The most common questions from shoppers: re any potential interactions with medications, re any side effects from long-term use, and cause any digestive issues or side effects. Full answers in the FAQ below.

Frequently Asked Questions

What is the clinical dose for Methylcobalamin (Vitamin B12)?

Clinical trials typically use 500-2,000 mcg daily (methylcobalamin). Sports Research Vitamin B12 Methylcobalamin 2000mcg delivers 2000mcg methylcobalamin per serving; 120 capsules per bottle, which we classify as Therapeutic relative to that range.

How does Sports Research Vitamin B12 Methylcobalamin 2000mcg compare to similar Liquid Veggie Capsule?

See the "Also consider" section below for two alternatives. Choose based on form preference (Liquid Veggie Capsule vs alternatives), dose adequacy, and third-party testing.

Is Sports Research Vitamin B12 Methylcobalamin 2000mcg third-party tested?

Yes — Non-GMO Project Verified; Vegan Certified; cGMP manufactured; third-party tested per SR quality protocol. Third-party testing verifies ingredient identity and label accuracy.

Does this work with Amazon Subscribe & Save?

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Is Sports Research Vitamin B12 Methylcobalamin 2000mcg in stock?

Current availability: OutOfStock. Stock status reflects the latest Amazon refresh — check the Amazon link for real-time status.

Are there any potential interactions with medications?

B12 supplementation is generally low-risk for medication interactions. Metformin (diabetes) and proton pump inhibitors (acid reducers) can reduce B12 absorption, making supplementation more important in those populations. High-dose B12 may theoretically interfere with some laboratory assays — inform your doctor you are supplementing if bloodwork is planned.

Are there any side effects from long-term use?

Vitamin B12 is water-soluble and excreted in urine when consumed in excess — no established upper tolerable intake level exists. Long-term use of 1000-2000mcg methylcobalamin is well-tolerated with no documented toxicity in clinical literature. Some individuals report mild acne with very high-dose B12 supplements, though this is uncommon at 2000mcg.

Does it cause any digestive issues or side effects?

B12 supplements are generally very well tolerated. The small amount of coconut MCT oil in the liquid capsule may cause mild GI discomfort in those sensitive to MCTs on an empty stomach. Starting with food can minimize this. Methylcobalamin is the gentlest form of B12 on digestion compared to synthetic alternatives.

Can it be taken with other supplements or vitamins?

Yes — B12 works synergistically with folate (B9) and B6 in the methylation cycle, so combining with a B-complex can enhance overall B-vitamin metabolism. Safe to stack with iron, vitamin D, omega-3s, and magnesium. No known negative interactions with common supplement combinations.

Are there any specific instructions for taking it safely?

Take one liquid veggie capsule daily with food and water. Those with B12 deficiency may benefit from confirming repletion with a serum B12 blood test after 2-3 months of daily supplementation. Store at room temperature away from heat and direct sunlight to preserve capsule integrity.

Also consider

Jarrow Formulas Methyl B-12 1000mcg product image

Jarrow Formulas Methyl B-12 1000mcg

Sublingual Lozenge · Methylcobalamin · $11.92

$11.92

Thorne Methylcobalamin (Methyl B12) product image

Thorne Methylcobalamin (Methyl B12)

Capsule · Methylcobalamin · $24.00

$24.00

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As an Amazon Associate, we earn from qualifying purchases. Some links below are affiliate links — this doesn't affect our editorial independence or product ratings. How we evaluate products

This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

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