While you can eat grass, it's generally not recommended due to potential digestive issues, dental wear, and limited nutritional value for humans.
Here's a more detailed explanation:
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Digestive Issues: Our bodies aren't designed to efficiently digest grass. The tough cellulose in grass can cause stomach upset, bloating, and difficulty passing stool.
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Dental Wear: Grass contains silica, an abrasive substance that can wear down tooth enamel over time. Consistent grass consumption could lead to dental problems.
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Nutritional Deficiencies: While grass does contain some nutrients, it's not a sufficient source of sustenance for humans. Relying on grass as a primary food source would result in malnutrition.
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Potential Contamination: Grass can be contaminated with pesticides, herbicides, fertilizers, and animal waste, posing a health risk if ingested.
In short, while not immediately poisonous, eating grass is not a beneficial or safe practice for humans.