Is eating wood harmful

Answer 1

A human cannot digest wood. Small amounts of wood (such as a pinch of sawdust)will eventually pass though the digestive system without doing you any harm. Larger amounts could give the eater problems.

Treated woods might be harmful.

Answer 2

Eating most forms of wood is unhealthy for dogs and can seriously damage their health. Some forms of wood are soft, malleable, and nutritious, because they are enhanced with vitamins and minerals, or are specifically designed for being consumed, and are considered acceptable forms of food for dogs to consume.