What Does Tobacco Do If You Eat It?

What Does Tobacco Do If You Eat It? Nicotine, the addictive ingredient in tobacco, is not safe – whether it is eaten, touched or inhaled. Symptoms of mild nicotine poisoning include stomach problems like nausea, vomiting and diarrhea. More severe cases can include dizziness, sweating, headache, hyperactivity or restlessness. Can you cook and eat tobacco?