Top Algae Omega-3 Supplements: UK Guide

Selected as a high-strength, premium fish oil option with a strong omega-3 yield per capsule and consistently high customer satisfaction.

High-potency omega-3 softgels designed to support heart, brain, and overall wellbeing with a concentrated EPA/DHA profile.

Buyers generally rate this as a reliable “high-strength” omega-3 that feels easy to stick with long-term. The most common positives are consistent quality, good value for a concentrated formula, and fewer “fishy” aftertastes compared with cheaper oils. The main drawbacks mentioned tend to be capsule size and the fact that it’s still fish-derived, so it won’t suit vegan or fish-sensitive users.

£38.80

Lamberts Omega 3 Ultra Capsules Pack of 60

High omega-3 content per capsule; strong brand reputation; good value for a concentrated formula.

Softgels can be large; not suitable for those avoiding fish-derived products.

Take daily with a meal; dose may vary depending on dietary fish intake and individual needs.

A dependable “daily driver” omega-3 for people who want a robust EPA/DHA contribution without complicated dosing.

Selected for families who need a liquid omega-3 format with a premium positioning and a child-friendly approach.

A liquid omega-3 supplement designed for children with specific nutritional requirements, formulated with ultra-purified omega-3s and vitamin E forms.

Reviews often describe this as a premium liquid omega option where the key win is adherence—parents and carers like the flexibility of dosing and the convenience of a liquid format. Positive feedback frequently highlights perceived quality and a smoother experience versus harsher-tasting oils. Critical comments typically focus on the premium price and the fact that taste preferences vary, so it may take a little trial to find the best way to serve it (with food, chilled, etc.).

£110.05

Speak+D Smooth Omega 3 Supplement 450ml - Nourish Life

Liquid format for flexible dosing; positioned for paediatric needs; includes antioxidant support via vitamin E.

Higher cost than capsule options; taste/texture preferences vary between children.

Follow label directions; take with food where possible; refrigerate if instructed on packaging.

This is a niche pick for households that specifically prefer liquids and are prioritising a child-centred format.

Selected for combining omega-3 with fat-soluble vitamins (A, D, E, K) in a single daily capsule for broad “foundational” support.

A combined formula pairing omega-3 fish oil with vitamins A, D, E and K to support general wellbeing, including immune and bone-health pathways.

Customers commonly like the “two-in-one” convenience of pairing omega-3 with fat-soluble vitamins, especially for people who want a simple daily routine. Reviews tend to mention good value and easy use with meals. The main negative theme is that it can duplicate nutrients if someone already takes a multivitamin or separate ADEK, so some buyers prefer a pure omega-3 instead.

£9.66

Allnutrition ADEK + Omega 3 Strong - 90 caps

Convenient “multi-in-one”; budget-friendly; suits people who already want ADEK supplementation alongside omega-3.

Not ideal for those who already take a multivitamin with ADEK; still fish-derived.

Take with a meal containing fat to support absorption of fat-soluble vitamins; follow the label dose.

Best used when the ADEK add-on is genuinely wanted; otherwise, a pure omega-3 may be simpler.

Selected as a high-quality cod liver oil option for users who prefer liquids and want a well-regarded Nordic Naturals format.

An unflavoured cod liver oil designed to support heart, brain, joint and immune health with naturally occurring omega-3 fatty acids.

Feedback usually frames this as a high-quality cod liver oil for people who prefer liquids. Reviews often mention a “cleaner” feel compared with basic oils and strong trust in the brand. The recurring downside is that unflavoured oils can still be a challenge for taste-sensitive users, and reviewers sometimes suggest taking it with food or chilling the bottle to improve the experience.

£33.03

Arctic Cod Liver Oil (Unflavoured) 237ml – Nordic Naturals

Liquid format; trusted brand; good fit for people who dislike softgels.

Unflavoured oils can be harder to tolerate; requires careful storage and consistent dosing.

Take the labelled serving with food; use consistently; follow storage guidance on the bottle.

A strong choice for liquid users; pairing with meals can improve tolerance and routine adherence.

Selected because testing can help people personalise omega-3 intake rather than guessing; useful for tracking changes over time.

A home blood test that measures omega markers (including an omega index and omega-6:omega-3 balance) to support informed nutrition decisions.

Reviewers typically value the clarity this test provides—rather than guessing, it helps users understand omega status and the omega-6:omega-3 balance. Positive comments often mention straightforward instructions and useful results for guiding supplementation. Less positive feedback tends to be about sample collection confidence and waiting for results, which is normal for home testing rather than instant-read products.

£79.00

Omega 3 and 6 (Essential Fatty Acids) Blood Test

Helps quantify status; supports targeted dosing decisions; useful for repeat monitoring.

Not a supplement; requires sample collection; turnaround time can be longer than standard kits depending on biomarkers.

Collect the sample as instructed in the kit; post to the lab; review results and adjust intake if needed.

Ideal for data-driven users; pairing results with consistent supplementation can make improvements measurable.

Selected as the best “budget entry” omega-3 for people who want a simple, low-cost option for routine use.

Basic fish oil softgels providing omega-3 fatty acids (including EPA and DHA) to support general heart-health needs.

Reviews generally describe this as a budget-friendly “starter” omega product. Buyers like the low cost and simplicity for daily use. The most common trade-off mentioned is that it feels more basic than premium concentrates—some users report they later switch to higher EPA/DHA options if they want more targeted support or fewer aftertastes.

£2.66

Valupak Omega 3 Fish Oils Capsules 1000mg Pack of 30

Very affordable; simple dosing; convenient for beginners.

Lower “premium” features; may require consistent long-term use to meaningfully shift intake.

Typically taken once daily with food; follow label directions.

Great as a starter option; upgrade to higher EPA/DHA if targeting specific outcomes.

Selected as a strong-value capsule option with broad appeal for everyday heart and brain support.

A fish oil-based omega-3 formula designed for routine use, providing EPA/DHA and vitamin E for oxidative protection.

Customers often highlight this as a solid mid-range fish oil that’s easy to take consistently. Reviews frequently point to good value for the capsule count and a straightforward daily routine with meals. Critical notes tend to mention that it’s not vegan and that people seeking very high-dose EPA/DHA sometimes prefer a more concentrated “ultra” style product.

£9.35

Allnutrition Omega 3 Strong - 90 caps

Cost-effective; straightforward daily use; good option for people wanting a “no-fuss” omega-3.

Not vegan; capsule format may not suit those who prefer liquids.

Take with a meal; follow the label serving size consistently.

A sensible mid-range pick for routine omega-3 intake without paying premium-brand prices.

Selected as a familiar, household-style cod liver oil option for those who prefer traditional liquid formats.

A classic cod liver oil product offering omega-3 support in a liquid form aimed at general wellbeing routines.

Reviews commonly reflect the “classic cod liver oil” experience—buyers like the familiarity, the long-standing brand trust, and the liquid format for those who dislike capsules. Negative feedback tends to be taste-related (even for long-time users) and about dosing consistency; reviewers often recommend taking it with food or at a consistent time of day.

£17.66

Seven Seas Original Cod Liver Oil Plus Omega 3 Fish Oil 450ml

Traditional liquid format; well-known brand; can be easier than capsules for some users.

Liquid oils can be harder to tolerate; dosing consistency matters; storage requirements apply.

Take the labelled serving with food; follow storage instructions on packaging.

Best for people who already “get on” with cod liver oil; if not, softgels may be easier.

Selected for long-term value: a larger count bottle that suits consistent daily supplementation and family use.

Concentrated fish oil capsules delivering omega-3 fatty acids for routine cardiovascular and general health support.

Feedback tends to focus on long-term practicality: buyers like the larger bottle, perceived consistency, and value per serving for habitual omega users. Many reviewers describe it as a dependable daily capsule rather than a “specialist” high-dose product. The main criticisms are typical of fish oils—capsule size and suitability for fish-free diets.

£38.80

Lamberts Fish Oil 1,100mg Capsules Pack of 180

Large pack size; good value per serving; reliable brand with steady reviews.

Requires long-term commitment; not suitable for fish-free diets.

Take daily with a meal; follow label guidance for serving size.

A practical “bulk” option for habitual omega-3 users who want consistency and value.

Selected for users who want a cod liver oil plus omega-style approach in a convenient capsule format.

A cod liver oil and omega-3 capsule product aimed at supporting broad wellness habits with an established consumer brand.

Reviewers usually like this as a convenient capsule alternative to liquid cod liver oil, especially for people who want a familiar brand without the taste. Positive comments often mention value for the capsule count and ease of use. The most common negatives are that it’s not designed for aggressive high-dose omega targets and remains fish-derived.

£15.00

Seven Seas Simply Timeless Omega 3 Fish Oil + CLO Pack of 120

Convenient capsule format; strong review volume; good price for 120 count.

Still fish-derived; not tailored for high EPA/DHA “therapeutic” dosing.

Take daily with food; follow the label for exact serving instructions.

A solid everyday pick for people who want a familiar cod-liver style product without the liquid.

Selected as a premium softgel option for those who dislike fishy aftertaste and want a high-quality brand with strong consumer trust.

High-quality fish oil softgels with a lemon profile designed to improve palatability while supporting heart and brain health.

Reviews frequently mention improved palatability—buyers choose the lemon profile to reduce fishy aftertaste and make daily use easier. Customers often describe the brand as “premium” and consistent. The recurring drawback is price, with some reviewers noting it’s an investment, particularly compared with standard fish oils.

£47.48

Omega-3 (Lemon) 180 Soft Gels - Nordic Naturals

Better taste experience; strong brand; large count pack for ongoing use.

Premium price; still fish-derived.

Take with a meal; follow the label for daily serving size.

A go-to for people who struggle with fishy aftertaste and want a “cleaner” user experience.

Selected for those wanting a high-intensity omega liquid with a premium positioning and a strong “all-round” formulation style.

A concentrated liquid omega formula in a lemon flavour, positioned for heart, brain, mood and general wellbeing support.

Customers often review this as a premium liquid for committed omega users who prefer dosing control and a stronger “high-intake” routine. Positive feedback typically highlights taste compared with unflavoured oils and brand trust. Critical feedback most often focuses on price and the need for consistency and storage discipline (keeping it as directed) to maintain a good experience.

£85.67

Ultimate Omega Xtra (Lemon) 237 ml - Nordic Naturals

Liquid format; premium brand; strong “high-dose” positioning for committed users.

High cost; requires consistent dosing discipline; storage and taste considerations apply.

Take the labelled serving with meals; follow bottle guidance for storage and use.

This is for people who want a premium liquid omega experience and are comfortable investing in it.

Selected as a child-friendly chew format that combines omega support with a multivitamin approach for kids.

Soft chew “softies” combining omega support with vitamins aimed at children’s growth and routine nutrition.

Reviews often describe these as an easy “compliance win” for children who refuse capsules or liquids. Parents commonly like the approachable format and the combined vitamin + omega concept. Negative comments generally relate to taste preference differences between children and the fact that parents still need to follow age-appropriate label guidance rather than assuming “more is better.”

£7.44

Haliborange Kids Multivitamin & Omega 3 Softies Pack of 30

Easy-to-take chew format; combines vitamins with omega support; strong review volume.

Not suitable for all dietary preferences; child supplements still require label-appropriate dosing oversight.

Use as directed on the label for the child’s age; typically taken daily.

A pragmatic option for parents prioritising adherence; always align with age guidance.

Selected for users who want salmon oil specifically, often chosen for its naturally occurring compounds alongside omega fatty acids.

Salmon oil softgels providing omega fatty acids as part of a daily wellness routine, with a natural factors brand positioning.

Reviewers typically choose this for the salmon oil format and the larger count bottle for consistent daily use. Positive feedback often mentions value for the size and an overall “clean” experience. The most common downsides are the usual fish-oil themes—softgel size and suitability for fish-free diets—rather than major complaints about performance.

£37.69

Omega Factors Wild Alaskan Salmon Oil 1000mg, 180 Softgels - Natural Factors

High review volume; salmon oil format; suitable for consistent daily intake.

Fish-derived; softgel size can be a barrier for some users.

Take daily with meals; follow label serving guidance for softgels per day.

A strong “salmon oil” alternative for people who want something a bit different from standard fish oil concentrates.

Selected as a performance-leaning omega option for users who want a premium “sports nutrition” positioning.

A premium fish oil softgel product aimed at supporting heart and brain health, often chosen by active users who prioritise quality.

Customers tend to review this as a premium, performance-leaning omega product. Positive comments often highlight trust in the brand positioning and a “high-quality” feel that fits a training or wellness routine. Less positive feedback generally focuses on price compared with more basic options, with many noting it’s best for people who prioritise premium sourcing rather than pure affordability.

£36.93

Momentous Omega-3

Premium positioning; suitable for consistent daily use; good fit for active lifestyles.

Higher price than basic options; fish-derived.

Take with meals daily; follow label serving instructions for softgels.

A good choice when brand trust and premium sourcing are priorities; not necessary for budget-first shoppers.

Selected for users who want a blended fatty-acid approach (3-6-9) rather than omega-3 alone.

A multi-fatty-acid supplement combining omega 3-6-9 with added vitamin E, commonly used with meals for cardiovascular support.

Reviews usually come from buyers who specifically want a blended fatty-acid approach rather than omega-3 alone. Positive comments often mention affordability and convenience with meals. Critical notes typically point out that people targeting higher EPA/DHA for specific outcomes may be better served by a dedicated omega-3 concentrate.

£8.88

Trec Nutrition Omega 3-6-9 - 90 caps

Blended approach; low cost; convenient daily capsule.

Not ideal if targeting high EPA/DHA specifically; fish-derived.

Take during or immediately after meals; follow the label serving size.

Useful for people who specifically want a 3-6-9 blend; otherwise, a pure omega-3 may be clearer.

Selected as a “sport edition” omega-3 for active users who want a performance-leaning product with strong review volume.

A fish oil supplement designed to support heart, brain and vision health with EPA and DHA, with vitamin E included for antioxidant support.

Customers often describe this as a strong value “sports” omega with a good capsule count. Positive reviews commonly mention easy daily use and a solid middle ground between cheap and premium products. Criticism tends to focus on the fact that “sport edition” branding may not matter for everyone and that it remains fish-derived.

£21.12

Olimp Nutrition Gold Omega 3, Sport Edition - 120 caps

Good value for 120 caps; strong review base; suits athletic routines.

Fish-derived; “sport” branding may not matter for everyday users.

Take with meals daily; follow label guidance on capsules per day.

A strong mid-priced sports omega option; good if you want a bigger capsule count without premium-liquid pricing.

Selected for households looking for an omega-3 product formulated specifically for pets rather than humans.

A pet-focused omega-3 liquid designed to support heart, brain, immune and coat health in dogs and cats.

Reviews frequently focus on practicality—pet owners like having a pet-specific omega product and the flexible dosing in liquid form. Positive comments often reference coat/skin support routines and ease of mixing with food. The main negatives typically relate to palatability for some pets and the need to dose appropriately by weight, rather than any consistent quality issues.

£16.00 (60 ml), £24.50 (237 ml), £41.57 (473 ml)

Nordic Naturals Omega3 Pet

Pet-specific; liquid dosing flexibility; multiple size options.

Not a human supplement; dosing must match pet weight/needs; storage and palatability vary.

Follow the label for species and weight-based dosing; mix with food if needed.

Only include in a “best omega-3” list when you’re explicitly covering pet omega products as well.

Selected as a premium, differentiated formula for users who want a more “specialist” omega profile with a strong review base.

A premium fish oil formula positioned for cardiovascular support, featuring a high DHA/EPA profile in gel caps.

Buyers often review this as a premium, differentiated omega choice and describe it as a “step up” from standard fish oils. Positive feedback commonly focuses on perceived quality and a strong preference for the formula style. The most frequent downside is cost, with reviewers usually framing it as a premium pick for people who already know they want an upgrade.

£38.95

Omega 3 / QH Premium (Formerly Omega 3 QH Ultra) 60 gel caps - xtendlife

Premium positioning; strong review volume; suitable for consistent daily use.

Higher price; not vegan; may be unnecessary for casual omega users.

Take with meals daily; follow label serving instructions for gel caps.

Best reserved for shoppers actively seeking a premium upgrade rather than a basic “omega top-up.”

Selected as a concentrated Lamberts omega option for users who want a high-potency profile in a straightforward capsule format.

A high-potency omega-3 supplement aimed at supporting heart health and brain function through EPA and DHA.

Reviews typically describe this as a concentrated, straightforward omega-3 option that fits easily into a daily routine. Positive feedback often mentions consistency and a higher-strength feel compared with basic fish oils. Critical comments are usually about capsule size and price compared with entry-level products, plus the fact it won’t suit vegan users.

£37.01

Omega 3 Ultra - 60 capsules - Lamberts

High-potency positioning; trusted brand; good review volume.

Premium cost vs entry-level options; not suitable for fish-free diets.

Take daily with a meal; follow label directions for capsule count per day.

This is the “clean, concentrated capsule” option for people who want a straightforward omega-3 routine without switching to liquids. It suits consistent daily use (especially with meals) and is best for users prioritising a reputable brand and dependable dosing; anyone chasing very high EPA/DHA targets may still need a higher-dose product or multiple capsules, while vegan users should choose an algae-based alternative.