SP
StackPedia
All Comparisons

Vitamin B2 (Riboflavin) vs Omega-3 (EPA/DHA) — Which Should You Take?

Vitamin B2 (Riboflavin)

vitamins

Typically £8–£25/month

Omega-3 (EPA/DHA)

amino acids

Typically £8–£25/month
Feature
Vitamin B2 (Riboflavin)
Omega-3 (EPA/DHA)
Typical Dosage
1.1–1.6 mg daily
1-2g combined EPA/DHA daily
Best Form
Riboflavin (free form)
Fish Oil (Triglyceride form)
Key Benefits
6 listed
5 listed
Evidence Rating
★★★★
★★★★★
Best Time
With meals for optimal absorption
With meals containing fat
Upper Limit
200 mg daily
5g daily
Side Effects
3 noted
3 noted

Vitamin B2 (Riboflavin) Benefits

Energy production and metabolism
Antioxidant protection
Eye health and vision
Nervous system support
Skin and hair health
Migraine prevention

Omega-3 (EPA/DHA) Benefits

Heart health — reduces triglycerides
Brain function and mental clarity
Anti-inflammatory effects
Joint health
May reduce depression symptoms (EPA specifically)

Vitamin B2 (Riboflavin) Side Effects

Yellow discolouration of urine (harmless excess excretion)
Rare allergic reactions at very high doses
Photosensitivity in extremely high doses

Omega-3 (EPA/DHA) Side Effects

Fish burps (use enteric-coated capsules)
Mild blood thinning at high doses
Rare: fishy aftertaste

Can You Take Vitamin B2 (Riboflavin) and Omega-3 (EPA/DHA) Together?

In most cases, Vitamin B2 (Riboflavin) and Omega-3 (EPA/DHA) 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.

Vitamin B2 (Riboflavin): Tricyclic antidepressants may impair riboflavin absorption

Vitamin B2 (Riboflavin): Phenothiazines and methotrexate increase requirements

Omega-3 (EPA/DHA): Blood thinners (warfarin, aspirin) — increases bleeding risk

Omega-3 (EPA/DHA): Blood pressure medications — additive effect

Which Should You Choose?

Choose Vitamin B2 (Riboflavin) if your primary goal is: energy production and metabolism. Choose Omega-3 (EPA/DHA) if your primary goal is: heart health — reduces triglycerides.

Affiliate links — we may earn a small commission at no extra cost to you.

Frequently Asked Questions

Is Vitamin B2 (Riboflavin) better than Omega-3 (EPA/DHA)?

It depends on your goals. Vitamin B2 (Riboflavin) and Omega-3 (EPA/DHA) serve different purposes and are often taken together.

Can I take Vitamin B2 (Riboflavin) and Omega-3 (EPA/DHA) together?

In most cases, yes. Vitamin B2 (Riboflavin) and Omega-3 (EPA/DHA) 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 Vitamin B2 (Riboflavin)?

With meals for optimal absorption

What is the best time to take Omega-3 (EPA/DHA)?

With meals containing fat

What are the side effects of Vitamin B2 (Riboflavin)?

Yellow discolouration of urine (harmless excess excretion). Rare allergic reactions at very high doses. Photosensitivity in extremely high doses.

What are the side effects of Omega-3 (EPA/DHA)?

Fish burps (use enteric-coated capsules). Mild blood thinning at high doses. Rare: fishy aftertaste.

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.

Related Comparisons

Popular Supplements on Amazon

As an Amazon Associate we may earn from qualifying purchases.