What should you know about potato food poisoning symptoms?

Illness after eating potatoes can result from germs or toxins in contaminated, poorly stored or inadequately prepared food. Symptoms may begin soon after a meal or later, depending on the cause. Nausea, vomiting, loose stools, abdominal cramps and fever can occur, but symptoms vary and another infection may produce a similar picture. Green or sprouted potatoes should not be eaten because natural toxins can cause gastrointestinal or neurological symptoms.

The key risk is fluid and salt loss. Watch for thirst, a dry mouth, dark urine, reduced urination, dizziness or unusual tiredness. These signs can be more concerning in children, older adults and people with long-term health conditions.

Take frequent small sips of water or an oral rehydration drink, especially after vomiting or diarrhoea. Once able, choose light foods and avoid alcohol and foods that worsen nausea. Rest, wash hands carefully and avoid preparing food for others while unwell. Keep information about the meal, timing of symptoms and anyone else affected. Do not use leftover potatoes that smell unusual or show green areas or sprouting.

Seek urgent care for blood in vomit or stool, severe or worsening abdominal pain, confusion, fainting, trouble breathing, persistent vomiting or signs of significant dehydration. Get prompt advice for a high fever, symptoms after eating green or sprouted potatoes, or illness in a young child, older adult or person with a serious medical condition. Medical treatment may include supervised oral rehydration or intravenous fluids when drinking is not enough.

Could this be food poisoning or another infection? How should I replace fluids, and what warning signs should I monitor? Do I need testing or treatment because of the food eaten, my symptoms or my health history?