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Flaxseed vs Vitamin B12 — Which Should You Take?

Flaxseed

superfoods

Typically £8–£25/month

Vitamin B12

vitamins

Typically £8–£25/month
Feature
Flaxseed
Vitamin B12
Typical Dosage
15-30g ground daily
500-1,000mcg daily
Best Form
Ground seeds
Methylcobalamin
Key Benefits
4 listed
5 listed
Evidence Rating
★★★★
★★★★
Best Time
With meals, must be ground
Morning — may be energising
Upper Limit
10-40g
No established upper limit (water-soluble)
Side Effects
2 noted
2 noted

Flaxseed Benefits

Highest plant source of omega-3 ALA
Rich in lignans for hormonal balance
Supports healthy cholesterol levels
Excellent source of soluble fibre

Vitamin B12 Benefits

Energy production
Nerve function and protection
Red blood cell formation
DNA synthesis
May reduce homocysteine levels

Flaxseed Side Effects

Bloating and gas initially
Must be ground for absorption

Vitamin B12 Side Effects

Very safe — excess excreted in urine
Rare: acne at very high doses in some individuals

Can You Take Flaxseed and Vitamin B12 Together?

In most cases, Flaxseed and Vitamin B12 can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication or have existing health conditions.

Flaxseed: Blood thinners

Flaxseed: Hormone-sensitive medications

Vitamin B12: Metformin reduces B12 absorption — supplement if on metformin

Vitamin B12: Proton pump inhibitors (PPIs) reduce absorption

Which Should You Choose?

Choose Flaxseed if your primary goal is: highest plant source of omega-3 ala. Choose Vitamin B12 if your primary goal is: energy production.

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Frequently Asked Questions

Is Flaxseed better than Vitamin B12?

It depends on your goals. Flaxseed and Vitamin B12 serve different purposes and are often taken together.

Can I take Flaxseed and Vitamin B12 together?

In most cases, yes. Flaxseed and Vitamin B12 can be taken together safely. However, always check for specific interactions and consult a healthcare professional if you take medication.

What is the best time to take Flaxseed?

With meals, must be ground

What is the best time to take Vitamin B12?

Morning — may be energising

What are the side effects of Flaxseed?

Bloating and gas initially. Must be ground for absorption.

What are the side effects of Vitamin B12?

Very safe — excess excreted in urine. Rare: acne at very high doses in some individuals.

How We Compare Supplements

This comparison is based on published clinical research, peer-reviewed studies from PubMed, and established nutritional science. We evaluate dosages based on clinically-effective amounts, not manufacturer recommendations. Benefits listed have at least moderate evidence from human studies. When evidence is limited or conflicting, we note this.

Disclaimer: This comparison is for educational purposes only and is not medical advice. Always consult a qualified healthcare professional before starting any supplement, especially if you take medication or have existing health conditions.

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