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Your Guide to Fish Oil

Not All Fish Oil Is Created Equal

Your heart, brain, eyes, joints, and immune system all depend on omega-3s, but only if the fish oil delivering them is up to the job. OmegaGenics® makes sure it is.

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  • A gold circular icon showing a stylized medical cross inside a shield. Trusted by 50K+ Doctors
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Testimonials

The Truth About Fish Oil

  • A close-up of a hand holding two golden softgel capsules against a neutral background, shown on the Metagenics OmegaGenics landing page.

    Fish oil does more than you think

    Omega-3s support your heart, brain, eyes, joints, and immune health. But your body can't produce them alone.*
  • A top-down view of a plate filled with salmon, avocado, olives, nuts, and seeds, displayed on the Metagenics OmegaGenics landing page.

    But most people aren’t getting enough

    You can only get omega-3s from food or supplements. 75% of people fall short, often due to poor supplement quality.+
  • An open tin of sardines arranged neatly inside the container, featured on the Metagenics OmegaGenics landing page.

    Poor quality fish oil makes it worse

    A formula low in purity or potency delivers less than the label says. Fishy burps are often the first sign.*
  •  A person holding a bottle of Metagenics OmegaGenics EPA-DHA 1000 in their hand, shown on the Metagenics OmegaGenics landing page.

    And your body feels the difference

    Dry skin, brittle hair, brain fog, and joint discomfort can all be signs your omega-3 levels need attention.*
+ University of East Anglia. (2025, December 9). Most of the world isn't getting enough omega-3. ScienceDaily.
Meet EPA & DHA

Meet EPA & DHA

The Two Nutrients Behind Every Fish Oil Benefit*

EPA:
A simple dark blue heart with a pulse line through the center. Heart
 dark blue stylized joint illustration with two bone ends. Joints
 A dark blue shield symbol. Immunity

Found naturally in fatty fish, EPA is the omega-3 that your body uses to support your heart, joints, and immune system.

DHA:
A dark blue outline of a brain. Brain
 A dark blue eye symbol. Eyes

Your brain and eyes' building blocks. It makes up +90% of the omega-3s in your brain, keeping your mind & vision healthy.*

A hand holding a spoon filled with golden fish oil liquid A hand holding a spoon filled with golden fish oil liquid
How EPA & DHA Help Your Body
A stylized outline of a human body with simplified internal organs illustrated in white, shown on the Metagenics OmegaGenics landing page.

How omegas help your body

System
What it does
 A gold heart with a pulse line through the center.
Heart
Helps keep your cardiovascular system and healthy triglyceride levels in check.*
A gold outline of a brain.
Brain
Keeps your mind sharp, focused, and your brain structure healthy.*
A gold eye symbol.
Eyes
Maintains the retinal structure your vision depends on, every day.*
 A gold stylized knee joint illustration.
Joints
Supports joint comfort and your body's natural inflammatory response.*
A gold shield symbol.
Immune
Keeps your body's defenses strong, resilient, and ready.*
Fish Oil Bestsellers

Fish Oil Bestsellers

Whatever your health goals, there's an OmegaGenics® formula built for it. Clinically formulated, third-party tested, and available in the dose and format that works for you.

Shop All Fish Oils
Pick Your Path
Testimonials

How to Choose the Best Fish Oil Supplement

Use this as your checklist.
  • A simple white droplet symbol.

    Does your body absorb it?

    The form of your fish oil affects how much your body absorbs. Look for formulas that are bioavailable. Our two bestselling OmegaGenics® formulas are made in triglyceride (rTG) form, absorbed up to 50% better than processed alternatives.*
  • A white shield with a plus sign inside.

    Do you know what's in it?

    Fish can accumulate contaminants from the ocean. A quality fish oil is independently tested and free of heavy metals, environmental toxins, and microplastics. All OmegaGenics® formulas are tested and free of over 200 common contaminants.
  • A white balanced scale symbol.

    Do you know where it came from?

    Wild-caught is only a starting point. Friend of the Sea certification is the global, independent standard that verifies responsible sourcing from ocean to bottle. OmegaGenics® has it.
Table
A lineup of Metagenics OmegaGenics supplements arranged against a yellow background, including multiple bottles of fish oil, algae omega‑3s, evening primrose oil, and a liquid fish oil bottle.
A comparison graphic showing a Metagenics supplement bottle beside two plain gray bottles, with a checklist highlighting differences between Metagenics and ordinary supplement brands. A comparison graphic showing a Metagenics supplement bottle beside two plain gray bottles, with a checklist highlighting differences between Metagenics and ordinary supplement brands.
How Much Fish Oil Do You Need?
UNDERSTANDING DOSAGE

How Much Fish Oil Do You Need?

Not all omega-3 doses are created equal. Here's how to know the right amount for you based on your diet, lifestyle, and health goals.

Testimonials

15,000+ Verified Reviews

  • quotation marks
    white checkmark Verified Purchase
     A single translucent yellow OmegaGenics fish oil softgel
    I have done comparisons on fish oil supplements, looked at ratings and actual ingredients, Metagenics comes out on top. Good quality product that's easy to take and doesn't have a fish smell or taste.
    five gold stars Jeff Shop Fish Oil Softgels
  • quotation marks
    white checkmark Verified Purchase
    A silver spoon filled with golden OmegaGenics liquid fish oil
    This liquid fish oil is a truly great product. Excellent quality. Used by my entire family. Not only is this an outstanding product, but the customer service is unsurpassed. 5 stars all day long.
    five gold stars Barry Shop Liquid Fish Oil
As Seen In
— AS SEEN IN —
Explore Our Products
Explore High-Quality Omega-3s

Fish Oil Supplements Trusted by Doctors

  • All
  • EPA
  • DHA
  • Triglyceride
  • Ethyl Ester
  • Plant-Derived
  • 2400 mg EPA-DHA
    A single bottle of Metagenics OmegaGenics® 5 in 1 Liquid Fish Oil 2400 mg EPA-DHA. Formulated to support heart, brain, eye, immune, and joint health.
    Liquid fish oil for your heart, brain, eye, immune & joint health*
    OmegaGenics® 5-in-1 Liquid Fish Oil 2400 mg EPA-DHA
    $57.50
    4.8 star
    SHOP NOW
  • 1000 mg EPA-DHA
    Bottle of Metagenics OmegaGenics® 5-in-1 Fish Oil 1000 mg EPA-DHA —30 softgels. Formulated to support heart, immune, bone, and muscle health.
    Softgels to support your heart, brain, eye, immune & joint health*
    OmegaGenics® 5-in-1 Fish Oil 1000 mg EPA-DHA
    $24.95
    4.7 star
    SHOP NOW
  • 720 mg EPA-DHA
    Bottle of Metagenics OmegaGenics® 3-in-1 Fish Oil 720 mg EPA-DHA —60 softgels. Formulated to support heart, muscle, and immune health.
    Omega support for your heart, muscle, and immune, health*
    OmegaGenics® 3-in-1 Fish Oil 720 mg EPA-DHA
    $34.00
    4.9 star
    SHOP NOW
  • 500 mg EPA-DHA
    Bottle of Metagenics OmegaGenics® Fish Oil EPA-DHA 500 mg—120 softgels. Formulated to support heart health.
    Targeted omega-3s to support your heart health*
    OmegaGenics® Fish Oil EPA-DHA 500 mg
    $47.25
    4.9 star
    SHOP NOW
  • 300 mg EPA-DHA
    Bottle of Metagenics OmegaGenics® EPA-DHA 300—270 softgels. Formulated to support heart health.
    Smaller size fish oil softgels for cardiovascular health*
    OmegaGenics® Fish Oil EPA-DHA 300 mg
    $54.25
    5.0 star
    SHOP NOW
  • 1200 mg EPA
    Bottle of Metagenics OmegaGenics® Fish Oil EPA 1200 mg—60 softgels. Formulated to support heart health and overall wellbeing.
    EPA-only fish oil for heart health and overall wellbeing*
    OmegaGenics® Fish Oil EPA 1200 mg
    $83.25
    4.9 star
    SHOP NOW
  • Brain Formula
    Bottle of Metagenics OmegaGenics® Neuro Fish Oil 1000 mg,  60 softgels. Supports heart, cognitive, and eye health.
    Specialized for brain health, memory, and peak cognitive function*
    OmegaGenics® Fish Oil Neuro 1000 mg
    $59.50
    3.5 star
    SHOP NOW
  • Omega-3s + 7s
    Bottle of Metagenics OmegaGenics® Fish Oil Mega 10®—60 softgels.
    Omega-3s and Omega-7s for immune, cognitive, and heart health*
    OmegaGenics® Fish Oil Mega 10®
    $58.00
    5.0 star
    SHOP NOW
  • Omega-6s
    Bottle of Metagenics OmegaGenics® Evening Primrose Oil—90 softgels.
    Omega-6s for prostaglandin metabolism and overall health.*
    OmegaGenics® Evening Primrose Oil
    $31.00
    4.6 star
    SHOP NOW
  • Cellular Health
    Bottle of Metagenics OmegaGenics® Borage Seed GLA Oil 240 mg—90 softgels. Formulated to support prostaglandin metabolis.
    Gamma-linolenic acid (GLA) for cellular health and prostaglandin metabolism*
    OmegaGenics® Borage Seed GLA Oil 240 mg
    $78.75
    5.0 star
    SHOP NOW
  • Vegetarian
    Bottle of Metagenics OmegaGenics® Algae Omega-3s—60 softgels. Formulated to support heart health.
    Plant-based source of omega-3 fatty acids to support heart health*
    OmegaGenics® Algae Omega-3s
    $54.25
    5.0 star
    SHOP NOW
  • Kids Fish Oil
    Bottle of Metagenics Omegagenics® Kids DHA—120 softgels.
    Omega-3 fatty acids to support healthy brain function for kids 3 and up*
    OmegaGenics® Kids DHA Omega Supplement
    $32.50
    5.0 star
    SHOP NOW
Related Articles

Frequently Asked Questions About Fish Oil Supplements

Fish oil delivers omega-3 fatty acids (EPA and DHA) that your body can't produce on its own. They support five of your body's most essential systems: heart, brain, eyes, joints, and immune health. The only way to get them is through food or a daily supplement.*

EPA and DHA are the two omega-3s found in fish oil, and they each do something specific. EPA supports your heart, joints, and immune system. DHA is the building block your brain and eyes rely on. It makes up over 90% of the omega-3s in your brain, keeping your mind sharp and your vision healthy. You need both EPA and DHA.*

It depends on your diet, lifestyle, and health goals. A good starting point for healthy adults is 250–1,000 mg of combined EPA and DHA per day. But the right dose for you depends on more than that.

The form your fish oil comes in affects how much your body actually absorbs. Triglyceride (rTG) form is the natural form found in whole fish, which your body can absorb more effectively. Ethyl ester (EE) is a processed form of fish oil. OmegaGenics® pure triglyceride form omega-3 fish oils are absorbed up to 50% more effectively.†

For general health, 250–500 mg of combined EPA and DHA is the daily minimum. For brain health specifically, research suggests 1–3 g per day may be more effective. The ratio of EPA to DHA matters too. Studies show that formulas where EPA is equal to or higher than DHA are most effective at supporting the body's natural inflammatory response, which plays a role in cognitive health.*

Role of the EPA:DHA dosing ratio in omega-3 supplements. PubMed, 2025.

Research suggests EPA and DHA play an important role in supporting joint comfort and flexibility. By supporting the body's natural inflammatory response, a high-quality fish oil can help promote ease of movement and overall joint health.*

If you're managing specific joint concerns or a diagnosed condition, we recommend speaking with a healthcare professional before starting any new supplement.

Think of it like choosing a nutrient-dense meal over a highly processed one. The ingredients might look similar on the surface, but the quality, absorption, and results are a different story entirely. Here's what sets OmegaGenics® apart: - Trusted by 50,000+ healthcare professionals across 40+ countries - Every formula is produced in GMP and NSF-certified facilities to meet the highest quality standards - Science-backed: 200,000+ tests performed annually, from ingredient sourcing to finished product - Friend of the Sea certified for responsible sourcing from ocean to bottle - Backed by 40+ years of clinical research

Finding the right fish oil supplement can take time, and we want you to feel confident making that investment. Every purchase on Metagenics.com is backed by our 60-day money back guarantee.

Omega-3s work best as a consistent daily habit, so we encourage you to give your body time to feel the difference. If OmegaGenics® isn't the right fit, simply contact our support team within 60 days of purchase and we'll process a full refund.

Visit our return policy page to learn more.

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Based on published studies comparing triglyceride and ethyl-ester forms of omega-3s.