I’m puzzled as to why someone would eat a test-tube burger when they could live healthily on a vegan diet.

Raising and slaughtering animals, even under the so-called “highest welfare” standards, still causes animal suffering and death. Those who are vegetarian have nothing to be proud about either; cows and egg-laying hens live longer than “meat” animals and are generally treated worse. They all end up at the same slaughterhouse.

Switching to a vegan diet eliminates animal exploitation, reduces heart disease and cancer, protects the environment and would feed our growing population.

Emma Richards, Halland Road, Brighton