I would say the answer would be either yoga or cardio
I agree and disagree. I disagree because with out meat she would not have protein , but if she ate eggs, tofu, and cheese she would have the protein.
So its healthy if she eats the eggs todu and cheese, but its unhealthy ( for her muscles ) to not have any protein.
I would listen to her. Don't interrupt unless she allows you to. She is very sad at this time and needs someone to tell everything to. Don't say anything that might bring her down. Tell her postive things!