Subway has launched a veganversion of its popular Meatball Marinara sub buttheres a catch.

The meat-free sandwich is not a permanent addition to Subways menu and is currently being trialled in selected stores inBirmingham and Manchester until 20 November.

However, the food chain wantsto introduce the new sub in all stores from next year.

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We are currently trialling an exciting new vegan product, our Meatless Meatball Marinara, in a number of stores across the UK, a Subway spokesperson said in a statement.

We are hoping to introduce these nationwide early next year, so keep your eyes peeled, and we'll let you know once we have more information!"

The pop singer is a passionate animal rights advocate, telling Vanity Fair in 2019 that her diet also reflects her fashion choices: "Im challenging the system more than ever. Choosing to live as a sustainable vegan activist means wearing more vintage (less waste; loving pieces for longer), playing with the newest eco-materials and technology, and making custom vegan pieces with some of my favorite designers."

AFP/Getty Images

The Clueless star went vegan shortly after wrapping the hit 1990s film and has been a passionate campaigner for animal rights since. Speaking in a video for Compassionate Meals in 2017, she said: "Knowing the truth about where our food comes from is just so disturbing to me. Once you see it, theres no way to go back from that for me."

Getty Images

The music mogul revealed in a recent interview with The Sun that he decided to give up animal products earlier this year "on a whim", adding that he feels much better as a result.

Getty Images

"I started for health reasons," Williams told Health in 2019. "I was diagnosed with an autoimmune disease, and I wanted to maintain my performance on the court. Once I started I fell in love with the concept of fueling your body in the best way possible. Not only does it help me on the court, but I feel like Im doing the right thing for me."

Getty

The American-Israeli actor decided to go vegan eight years ago after learning more about the environmental consequences of eating animal products. Speaking at an Environmental Media Awards benefit, 2017, she said: "Factory farming is responsible for most of the air, water, and land pollution - that disproportionately affects our poor communities as well. So we get to make decisions three times a day, what we do with our planet, and you can make a difference by even once a day or once a week choosing not to eat animals or animal products."

AFP/Getty Images

While she chooses to refer to herself as plant-based as opposed to vegan, the 'Halo' singer underwent a 22-day vegan challenge with husband Jay-Z in 2013 and is believed to have maintained the diet ever since. Writing in the foreword of The Greenprint: Plant-Based Diet, Best Body, Better World by Marco Borges, the couple say: "We used to think of health as a diet some worked for us, some didnt. Once we looked at health as the truth, instead of a diet, it became a mission for us to share that truth and lifestyle with as many people as possible."

Getty Images for Coachella

The British boxer extolled the virtues of veganism in an interview with The Daily Telegraph in 2016: "A lot of the meat that people eat has been genetically modified, or if it hasnt then the food the animals been fed has been. Thats tough for a human being to process, so cutting it out made me feel immediately better and stronger than ever."

Getty Images

The 'Dangerous Woman' singer announced she was going vegan in November 2018. Speaking to The Daily Mirror in a recent interview, she explained: "A lot of the meat that people eat has been genetically modified, or if it hasnt then the food the animals been fed has been. Thats tough for a human being to process, so cutting it out made me feel immediately better and stronger than ever."

AFP/Getty Images

The British singer has been toying with veganism for a while, having been a vegetarian for seven years. Speaking to The Cut in 2018, she revealed that she will "never eat fish or meat again" and eats a predominantly vegan diet.

Getty Images

The former heavyweight boxing champion revealed he had become vegan in 2010. "I wish I was born this way," he told Fox News in 2011. "When you find out about the processed stuff you have been eating. I wonder why I was crazy all those years."

Getty Images

The Zero Dark Thirty star decided to go vegan roughly 13 years ago because of low energy. Speaking to W Magazine in 2017, she clarified: "being vegan was not anything I ever wanted to be. I just really was listening to what my body was telling me."

Getty Images

Mara has been vegan for eight years, telling Harper's Bazaar in 2018 "its better for your health and the environment.

Getty Images

Reality star Kim Kardashian West revealed that she has started eating a plant-based diet on Instagram in April 2019. Sharing two photographs of vegan dishes on her Instagram story, the 38-year-old wrote: I am eating all plant-based when I am at home.

Getty

The pop singer is a passionate animal rights advocate, telling Vanity Fair in 2019 that her diet also reflects her fashion choices: "Im challenging the system more than ever. Choosing to live as a sustainable vegan activist means wearing more vintage (less waste; loving pieces for longer), playing with the newest eco-materials and technology, and making custom vegan pieces with some of my favorite designers."

AFP/Getty Images

The Clueless star went vegan shortly after wrapping the hit 1990s film and has been a passionate campaigner for animal rights since. Speaking in a video for Compassionate Meals in 2017, she said: "Knowing the truth about where our food comes from is just so disturbing to me. Once you see it, theres no way to go back from that for me."

Getty Images

The music mogul revealed in a recent interview with The Sun that he decided to give up animal products earlier this year "on a whim", adding that he feels much better as a result.

Getty Images

"I started for health reasons," Williams told Health in 2019. "I was diagnosed with an autoimmune disease, and I wanted to maintain my performance on the court. Once I started I fell in love with the concept of fueling your body in the best way possible. Not only does it help me on the court, but I feel like Im doing the right thing for me."

Getty

The American-Israeli actor decided to go vegan eight years ago after learning more about the environmental consequences of eating animal products. Speaking at an Environmental Media Awards benefit, 2017, she said: "Factory farming is responsible for most of the air, water, and land pollution - that disproportionately affects our poor communities as well. So we get to make decisions three times a day, what we do with our planet, and you can make a difference by even once a day or once a week choosing not to eat animals or animal products."

AFP/Getty Images

While she chooses to refer to herself as plant-based as opposed to vegan, the 'Halo' singer underwent a 22-day vegan challenge with husband Jay-Z in 2013 and is believed to have maintained the diet ever since. Writing in the foreword of The Greenprint: Plant-Based Diet, Best Body, Better World by Marco Borges, the couple say: "We used to think of health as a diet some worked for us, some didnt. Once we looked at health as the truth, instead of a diet, it became a mission for us to share that truth and lifestyle with as many people as possible."

Getty Images for Coachella

The British boxer extolled the virtues of veganism in an interview with The Daily Telegraph in 2016: "A lot of the meat that people eat has been genetically modified, or if it hasnt then the food the animals been fed has been. Thats tough for a human being to process, so cutting it out made me feel immediately better and stronger than ever."

Getty Images

The 'Dangerous Woman' singer announced she was going vegan in November 2018. Speaking to The Daily Mirror in a recent interview, she explained: "A lot of the meat that people eat has been genetically modified, or if it hasnt then the food the animals been fed has been. Thats tough for a human being to process, so cutting it out made me feel immediately better and stronger than ever."

AFP/Getty Images

The British singer has been toying with veganism for a while, having been a vegetarian for seven years. Speaking to The Cut in 2018, she revealed that she will "never eat fish or meat again" and eats a predominantly vegan diet.

Getty Images

The former heavyweight boxing champion revealed he had become vegan in 2010. "I wish I was born this way," he told Fox News in 2011. "When you find out about the processed stuff you have been eating. I wonder why I was crazy all those years."

Getty Images

The Zero Dark Thirty star decided to go vegan roughly 13 years ago because of low energy. Speaking to W Magazine in 2017, she clarified: "being vegan was not anything I ever wanted to be. I just really was listening to what my body was telling me."

Getty Images

Mara has been vegan for eight years, telling Harper's Bazaar in 2018 "its better for your health and the environment.

Getty Images

Reality star Kim Kardashian West revealed that she has started eating a plant-based diet on Instagram in April 2019. Sharing two photographs of vegan dishes on her Instagram story, the 38-year-old wrote: I am eating all plant-based when I am at home.

Getty

So, what is the Meatless Meatball Marinara made from?

The six-inch version of the meat-free option has four vegan meatballs covered in marinara sauce topped with alayer of vegan cheese.

Vegetarian fans can choose to swap out the vegan cheese for a dairy options, including American cheese and a grated mozzarella and cheddar blend.

Earlier this year, Subway launched a vegan version of the sub in 685stores in North America and plans to roll it out across the US and Canada pending demand.

The sandwich giant isn't the only retailer to increase its meat-freeofferings this year.

Earlier this month, Pret a Manger launched vegan versions of its most popular sandwiches, including a vegan take on the age-old BLT and a chuna mayo baguette.

Hannah Dolan, global head of food innovation at Pret, said the firm has worked really hard to mimic the tastes and textures of the original sandwiches in its Vegan Classics range.

This is all part of our mission to make it easier for customers to eat less meat, by offering delicious vegan and vegetarian food, Ms Dolan said.

In April 2018, it was reported that the number of people in the UK who identified as vegan had soared to 3.5m.

In 2016, 540,000 people in Britain over the age of 15 were following a plant-based diet, according to statistics published by The Vegan Society and Vegan Life.

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Vegan meatball Subway finally launches in the UK here's what you need to know - The Independent