In high school, she learned more about how meat production can be harmful to the planet, and she decided to become vegetarian.

When she later learned about animal mistreatment on factory farms and the conditions for dairy cows and egg-laying hens, she became vegan.

Meier led Animal Outlook through several successful campaigns, including ending the egg industry's use of "Animal Care Certified" claims that could mislead consumers, as well as persuading companies like Dunkin' Donuts, Starbucks, and Subway to offer vegan options.

[6][5][7] She also persuaded vegetarian brands Boca Burger, Lightlife, Morningstar Farms, and Quorn to eliminate or reduce their use of eggs in their products.

[8][9] She also appeared in major news outlets including CNN, ABC's Nightline, the Associated Press, the Los Angeles Times, and Reuters.