Warning Over Expensive Omega 3 Supplements That Offer No More Benefits Than Cheaper Alternatives

Many shoppers assume that paying more for a "high strength" omega 3 supplement guarantees a higher dose of beneficial nutrients. However, a new consumer investigation suggests that this is not always the case. Some premium-priced products contain the same amount of active omega 3 ingredients as much cheaper alternatives, leaving consumers paying significantly more for little or no additional nutritional value.

The findings have sparked fresh concerns about supplement labeling and marketing practices. Experts are now encouraging buyers to look beyond the front of the packaging and check the actual levels of EPA and DHA before making a purchase.

Some Expensive Omega 3 Supplements Offer No Extra Value

According to consumer watchdog Which?, several omega 3 supplements marketed as "high strength" contain surprisingly low amounts of the active ingredients that provide the health benefits associated with omega 3 fatty acids.

Nutrition specialists evaluated 24 omega 3 supplements available in UK stores. The investigation compared products against guidance from the Scientific Advisory Committee on Nutrition (SACN), which recommends an average daily intake of 450 mg of EPA and DHA combined.

For products promoted as high strength, Which? used 1,000 mg of EPA and DHA as a benchmark because research has demonstrated health benefits for certain groups at that intake level.

The results revealed that several products labeled as high strength failed to provide even the recommended daily intake of EPA and DHA.

Why EPA and DHA Matter

Many consumers mistakenly believe the large number displayed on supplement packaging represents the amount of beneficial omega 3 they are receiving.

In reality, the number often refers to the total fish oil content rather than the active omega 3 fatty acids.

EPA, or eicosapentaenoic acid, and DHA, or docosahexaenoic acid, are the long-chain omega 3 fatty acids linked to important health benefits, including:

• Supporting normal heart function
• Helping maintain healthy blood pressure
• Contributing to normal blood triglyceride levels
• Supporting brain and eye health

Without checking the EPA and DHA content, shoppers may believe they are buying a stronger supplement than they actually are.

Investigation Highlights Price Differences

The Which? investigation found that several supermarket own-brand products marketed as high strength contained only 250 mg of EPA and DHA combined.

Among those identified were omega 3 fish oil supplements sold by:

• Superdrug
• Morrisons
• Sainsbury's

Despite their high strength branding, these products provided well below the benchmark used by researchers.

The investigation also highlighted Holland & Barrett's High Strength Omega 3 Fish Oil 1500 mg supplement, which contained 375 mg of EPA and DHA. Although this exceeded some supermarket products, it still fell below the recommended daily intake of 450 mg.

Paying Double for Similar Nutrition

Perhaps the biggest concern raised by the investigation was the difference in pricing.

For example, Sainsbury's charged approximately 14 pence per daily serving for its high strength omega 3 supplement containing 250 mg of EPA and DHA.

Comparable products from Asda and Tesco delivered the same amount of EPA and DHA while costing around 7 pence per serving.

Similarly, Holland & Barrett's premium product cost roughly 27 pence per daily serving while providing only a modest increase in active omega 3 compared with its standard version, which was available for 22 pence per serving.

The findings suggest consumers could be paying almost twice as much without receiving proportionately higher nutritional benefits.

Better Value Alternatives Were Identified

Not every supplement performed poorly.

Which? identified several brands that delivered at least 1,000 mg of EPA and DHA while costing less than 20 pence per serving.

Among the better-value brands highlighted were:

• Nutravita
• Weightworld
• Zipvit

These products demonstrated that higher EPA and DHA levels are available without necessarily paying premium prices.

Why Packaging Can Be Misleading

One of the biggest issues identified by researchers is the way supplement labels are presented.

Many manufacturers prominently display the total fish oil content on the front of the package, often using large numbers such as "1000 mg" or "1500 mg."

However, the actual EPA and DHA content is typically listed in much smaller print on the back or side of the packaging.

This presentation can easily lead shoppers to believe they are purchasing a more potent product when the active ingredients are relatively low.

Experts recommend reading the nutrition panel carefully before making a buying decision.

Retailers Defend Their Labels

The retailers named in the investigation defended their product labeling.

Superdrug, Sainsbury's, Morrisons, and Holland & Barrett stated that their products comply with existing nutrition and health claim regulations.

Current UK and European regulations allow omega 3 products to use certain claims when they contain at least 80 mg of EPA and DHA combined.

Retailers also pointed out that there is currently no legally defined industry standard specifying what qualifies as a "high strength" omega 3 supplement.

Holland & Barrett said the term is intended to help customers distinguish between different formulations within its product range rather than represent an official nutritional standard.

The company also noted that EPA and DHA amounts are clearly displayed on its packaging and website.

Tips for Buying Omega 3 Supplements

If you regularly purchase omega 3 supplements, there are several simple ways to make better buying decisions:

• Check the combined EPA and DHA amount rather than total fish oil.
• Compare price per serving instead of package price.
• Read the nutrition label carefully.
• Avoid assuming that "high strength" always means higher active ingredients.
• Compare multiple brands before purchasing.
• Consider whether you actually need a high-dose supplement based on your healthcare professional's advice.

Taking a few extra moments to compare labels could save money while ensuring you receive the nutritional intake you expect.

The Bottom Line

The Which? investigation serves as a reminder that supplement marketing does not always reflect nutritional value. Large numbers on the front of a package may refer to total fish oil rather than the active omega 3 fatty acids that matter most.

Consumers who compare EPA and DHA levels instead of relying on front-of-pack claims may find cheaper products that provide equal or even better nutritional value.

As demand for dietary supplements continues to grow, transparency in labeling remains essential for helping shoppers make informed choices and avoid paying premium prices for products that deliver little additional benefit.

Source: The Independent, August 06 2026.

Disclaimer: This article is for informational purposes only and should not be considered medical or nutritional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any dietary supplement, particularly if you have underlying health conditions, are pregnant, or are taking prescription medication.