Vegetarianism is a plant(and fungus)-based diet. This may be motivated by veganism/ethics, climate/environmental concerns, religion, and/or health.
Lacto-ovo-vegetarianism is when you call yourself vegetarian but eat mostly cheese. This may be motivated by wanting to feel like a good person or imagine that you are eating a healthy, environmentally-friendly diet.
Vegetarianism is a plant(and fungus)-based diet. This may be motivated by veganism/ethics, climate/environmental concerns, religion, and/or health.
Lacto-ovo-vegetarianism is when you call yourself vegetarian but eat mostly cheese. This may be motivated by wanting to feel like a good person or imagine that you are eating a healthy, environmentally-friendly diet.