Tesco has ended a four-week trial of a new 'superfood' tomato containing high levels of antioxidants.

Sales of the fruit, which was marketed on the vine under the retailer's Healthy Living brand, were encouraging, a spokeswoman said.

Tesco is now planning to roll out the product ­commercially.

Produce technical manager Ian Reed said that UK shoppers had bought 10% more tomatoes this year than last, creating strong demand for innovation in the sector.

The 'superfood' tomato is a British tomato that has been bred with double the amount of antioxidant lycopene contained in a normal fruit. This gives it a deeper red colour than regular tomatoes. Antioxidants are said to have various health benefits, including reducing the risk of heart disease and some cancers.

The tomatoes were on sale at £1.89 for five fruits and Tesco is planning to introduce an organic version later this year.