Grégoire-Trudeau has been open about her struggle with bulimia, which she says started when she was about 17 years old. The illness continued until she was in her early 20s, when she eventually reached out to her mother, Estelle Blais, for help to get treatment. She has spoken about this often and has done advocacy work for agencies, such as the Clinique des troubles alimentaires (BACA) and the Bulimia Anorexia Nervosa Association (BANA), both of which offer support to people suffering from eating disorders. She has also collaborated with renowned researchers working on behalf of women’s mental health. Her willingness to open up about her suffering and connect to other sufferers has undoubtedly made positive differences in the lives of many.

Grégoire-Trudeau has also used her voice to bring attention to other issues she is passionate about, including women’s self-esteem and violence against women. She became a national ambassador for Plan Canada’s “Because I am a Girl” Initiative, which aims to achieve lasting improvements in the quality of life of girls in developing countries and has acted as a spokesperson for FitSpirit and Fillactive, charities that encourage teenage girls to pursue a healthy, active, balanced lifestyle. She also became a spokesperson for the Shield of Athena, a non-profit organization for victims of domestic abuse.

In addition, she has participated in the UN Women National Committee Canada, Dove’s “Pay Beauty Forward” program, 60 Million Girls Foundation, the Canadian Cancer Society, Girls for the Cure, and the Looking Glass Foundation, among many others. She was the recipient of the 2013 UN Women National Committee Canada Recognition Award for her contribution to human rights.

When Grégoire-Trudeau first sought treatment, she says it was her mother who helped her realize the importance of empathy toward others, and she continues to put forth her mother’s message.