vegetarian
A growing number of people are embracing vegetarianism or veganism.
The consumption of meat is not sustainable - the answer is either vegetarianism or a massive reduction in the human population.
Vegetarianism is a fairly mainstream dietary choice nowadays.

SMART Vocabulary: related words and phrases

Diets & dieting
caloric
calorie-controlled
carb-free
clean eating
cleanse
detox
diabetic
fatty
functional food
keto diet
ketogenic diet
lacto-ovo vegetarian
lacto-vegetarian
lacto-vegetarianism
regimen
staple diet
supernutrition
veganism
Veganuary
weight loss