Assuming there was no food and it was important that I survive to save many people and my mother was dead, I would eat it, No matter how traumatized I was later, if it would save a lot of people I would.
Let's put it this way:
The earth was dominated by aliens and to save the few survivors and the land someone would need to go to the mother ship of the aliens and step on a button that would blow up all the aliens, but this one (in this case I) would be very hungry because there are days that I had not eaten anything, my mother is on my side, she is dead. In that case I would eat her to have strength and complete the mission to save the earth and the people.
But this is no different from the things that rich countries do by invading poor countries to steal their natural resources.
Or what we all do when we kill animals and eat them.
We do a lot of bad things to survive.
Never, because my mom born me here in the world and I will never hurt my mom because since birth she care for me even I'm so importunate she is always there to give me advices, she gets my report card in my school and she always care.
This is very beautiful and easy to say, but the reality of the world is completely different:
The fish, the chicken, the ox, the shrimp, the squid, the buffalo, do not have the right to live?
after the forum "Would you eat a human?" Now there is "Would you eat your mother alive?". Absolutely unbelievable contemporary man actually had a strange thought. To eat the flesh of men I would never, How could I eat the flesh of my own mother ?? Live or die, I will never eat the flesh of my mother, now a lot of questions that made me queasy. The world is already funny. What kind of a crazy question that will appear ??
lol if there are no other to eat maybe I'll Go kill myself just to end the suffering of starvation . 
