The article examines the growing popularity of tuna in the UK and the health considerations linked to its consumption, particularly concerns surrounding mercury exposure.

According to figures released by Tesco, sales of tinned tuna have increased by nearly 18 per cent over the past two years, driven largely by health-conscious consumers influenced by social media trends.

Nutrition experts interviewed in the report explain that tuna remains popular because it is affordable, convenient, high in protein and rich in nutrients such as vitamin D, selenium, iron, potassium and omega-3 fatty acids.

The article compares tinned and fresh tuna, noting that while fresh tuna contains higher levels of beneficial omega-3 fats and vitamins, the canning process reduces some nutritional value, especially heat-sensitive B vitamins.However, canned tuna is still considered a healthy source of lean protein and may help people reduce consumption of heavily processed foods.A major focus of the report is the risk posed by mercury accumulation in tuna.Because tuna are large predatory fish, they absorb mercury from smaller fish over time.Excessive mercury intake may affect the nervous system and can be particularly dangerous during pregnancy and childhood.Experts cited in the article recommend limiting intake rather than avoiding tuna altogether.Healthy adults are generally advised not to exceed four 140g cans per week, while pregnant women are encouraged to consume even less.

The piece also discusses differences between tuna packed in spring water, brine and oil, highlighting how these affect calorie content, sodium levels and omega-3 retention.Nutritionists additionally recommend pairing tuna with vegetables, whole grains and healthy fats as part of a balanced Mediterranean-style diet.