There may be several reasons why dogs eat grass:

Digestive issues: Eating grass may help dogs digest and help them Removes foreign matter from the intestines or relieves an upset stomach.

Nutritional needs: Grass contains some vitamins and minerals, and dogs may eat grass to supplement the nutrients they lack in their diet.

Behavior: Some dogs may eat grass simply out of habit or interest.

Boring or exploring: Eating grass can be a way for dogs to explore and have fun, especially if they are bored or curious.