(CNN)A judge has ruled that ethical veganism qualifies as a philosophical belief protected under UK law.
Jordi Casamitjana, an "ethical vegan," claims he was dismissed by his employer, animal welfare charity the League Against Cruel Sports, in April 2018 because he informed colleagues that their employer's pension fund was "being invested in companies that experiment on animals" and non-ethical funds -- a claim the charity has rejected.
Ethical vegans not only follow a vegan diet, but also oppose the use of animals for any purpose, such as animal testing.
At an employment tribunal on Friday, judge Robin Postle said he was "satisfied overwhelmingly" that ethical veganism meets the criteria of the Equality Act to qualify as a philosophical belief.
In a short summary judgment, Postle declared that veganism "clearly in my view meets all the criteria; It is a philosophical belief, not just an opinion."
"It is cogent, serious and important, and worthy of respect in democratic society," he added.
Casamitjana brought the landmark legal case to court on Thursday, hoping to force a change to Britain's Equality Act that would see veganism included as a philosophical belief protected from discrimination.
The law, passed in 2010, defines "religion or belief" as one of the nine "protected characteristics," which include race, sex, pregnancy and maternity and sexuality, making it unlawful for employers to discriminate on those grounds.
For Casamitjana to qualify for protection under the act, his lawyers had to prove that veganism is "a belief and not an opinion," that it has "a certain level of cogency, seriousness, cohesion and importance," and that it is "worthy of respect in a democratic society, compatible with human dignity and not conflict with the fundamental rights of others."
Casamitjana expressed his satisfaction with the judgment.
"I'm extremely happy with the outcome of this hearing and for the words of the judge who clearly under