A consumer investigation reports that some higher-priced omega-3 products sold in high-street shops may not be stronger than cheaper alternatives. The study by consumer group Which? reviews omega-3 supplements against the recommended daily intake of the active ingredient. It finds that certain pricier “high-strength” products contain less active ingredient than the level needed to meet the recommended daily intake. In addition, the report says some of these more expensive items contain less of the active substance than cheaper versions available for purchase. The findings suggest consumers may not necessarily get greater potency simply by paying more for “high-strength” branding. The report focuses on the amount of active omega-3 present in products rather than other factors such as formulation differences. It also implies that consumers may benefit from checking product labeling and comparing the stated active ingredient content across brands and price points.