Face of Nation : A poster in the window of The Fish And The Chip, in St Nicholas Place, Leicester, said it was “not comfortable” with the impact the business was having on the environment.
The owners said an “eye-opening” fishing trip had revealed to them the impact pollution was having on the oceans and fish stocks.
Now they have vowed to produce gluten-free and plant-based food.
The poster told customers: “Our fishing trip was great but turned out to be a bit of an eye-opener.
“We saw the impact pollution is having on the oceans and fish stocks and we are not comfortable running a restaurant that has an impact on our environment.
“As a result we have decided to close the restaurant.”
The owners added they planned to take their business in a different direction and would be offering a new range when it re-opens.
The notice ended: “But don’t worry. We are still committed to creating gluten-free, plant-based food and are really excited to share our new range very soon.
“Until then, thank you to all our loyal customers that have supported us with the restaurant.”