Did You Know?

Breast milk contains all the nutrients that humans need

A nutrition consultant at Stanford University School of Medicine and former national spokesperson for the American Dietetic Association confirmed that the Mother's food is a complete food for the baby because it is the only food that provides all the nutrients that humans need.
She also said that adults could survive on human milk too. That means you would have to find a woman who is willing to provide enough of it. (God help the woman that is willing to do that)

The other option that could be cool is the mammalian milk especially if it is fermented. Yogurt, which is fermented milk, has a lot of bacteria that is good for the digestive tract.
So if you are trying to avoid some food for one reason or the other, you could settle for breast milk.