Question: can undercooked potatoes cause diarrhea?
Answer: Glycoalkaloid toxicity leads to cell disruption, potentially resulting in vomiting, abdominal pain and diarrhea. In some cases, it may cause headache, fever, flushing and confusion. There have even been a few cases of death. Cooking doesn't destroy glycoalkaloids, so both raw and cooked potatoes can carry risk.