Spinach Poisoning in 6 Questions

Spinach is one of the most beneficial vegetables among seasonal produce. However, due to the recent cases of spinach poisoning, there is growing fear about consuming spinach. Anadolu Medical Center’s Internal Medicine and Nephrology Specialist, Assoc. Prof. Dr. Enes Murat Atasoyu, answered common questions regarding spinach poisoning.

What should you pay attention to before buying spinach?

When purchasing spinach, ensure that the leaves are fresh, not yellowish or brown, without spots or blemishes, and that the leaves are intact. It is important to wear gloves and wash the leaves individually under running water, making sure to remove any foreign weeds mixed in.

How should spinach be washed to remove chemicals?

During cultivation, vegetables may be exposed to pesticides, preservatives, and insect eggs in the soil. Additionally, chemicals from rain and bacteria from the soil may be present on fresh fruits and vegetables. Washing the vegetables thoroughly under running water is usually sufficient. However, soaking in vinegar water is an effective solution to clean any remaining bacteria. Also, for vegetables like spinach that can be bought with roots, it is best to wash them after separating the roots. Since bacteria can transfer from our hands to the vegetables, hands should be washed both before and after washing the vegetables.

How long does cooked spinach last before spoiling?

Cooked spinach should be kept outside for no more than 2 hours, and if not consumed, it should be stored in the refrigerator. In very hot weather, the food should not be kept outside for more than one hour. The cooked dish should be reheated no more than twice. Therefore, spinach can be stored in the refrigerator for up to 2 days.

How can you tell if spinach salad or dish has spoiled?

Signs of spoilage in cooked spinach include sourness, a foul smell, and a change in the consistency of the liquid.

How does spinach cause poisoning? What toxic substances are produced?

Spinach can cause discomfort in individuals sensitive to a substance called "histamine" in its structure. Additionally, during the processes of growing, harvesting, transporting, and storing spinach, it may come into contact with bacteria, parasites, harmful weeds, or chemicals, leading to symptoms of poisoning.

What are the symptoms of spinach poisoning? When should you consult a doctor?

Individuals with histamine sensitivity may experience stomach cramps, skin itching, runny nose, or nasal congestion after eating spinach. If spinach leaves are contaminated with bacteria, chemicals, or harmful weeds, symptoms like nausea, vomiting, fever, diarrhea, and a general feeling of illness can occur. If there is bloody stool, severe vomiting, persistent fever, or changes in consciousness, you should consult a doctor immediately.