Tag: Tannin toxicity

Raw acorns contain high levels of tannins, bitter compounds that can irritate the digestive system and interfere with nutrient absorption. If you eat one raw acorn, the most likely outcome is an unpleasant, bitter taste followed by mild stomach upset. While one acorn is unlikely to cause severe illness, it is not recommended due to the unpalatable flavor and potential for minor digestive issues.

Tannic acid, a natural polyphenol found in many plants like tea, is generally safe in food amounts, but excessive exposure can cause significant health and environmental problems. Research indicates high doses can lead to digestive distress, nutrient deficiencies, and liver damage, while its industrial use is a source of severe pollution.