Lab-grown algae could provide more environmentally friendly alternative to fish oils, scientists suggest

Researchers tout microalgae as substitute for popular omega-3 supplements

For those already consuming a healthy diet, the benefits of taking additional fish oil supplements are not proven (Getty )

The omega-3 fatty acids found in food substances such as some types of fish have long been held to play an important role in human diet.

This is one reason why the NHS currently recommends people eat “at least two portions of fish a week, including one of oily fish”. Oily fish are particularly rich in omega-3.

In addition to being widely regarded as an important part of a well-rounded diet, omega-3 has previously been credited with boosting cognitive function and protecting the heart, though recent research has not supported these claims.