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Here are five foods you should never keep overnight. If you do have any leftovers, throw them out.


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By Admin - November 26, 2025

 

In today’s busy lifestyle, we often put leftovers in the fridge, thinking we’ll eat them later. But according to nutrition and food safety experts, some foods can become dangerous to our health if stored or reheated incorrectly. Here are the foods you shouldn’t leave out overnight or reheat , according to experts👇

🥬 1️⃣Leafy greens (spinach, celery, lettuce)

These vegetables are rich in nitrates, which are not dangerous in themselves, but with prolonged storage or reheating they can turn into nitrites – substances associated with an increased risk of toxin formation and stomach problems.
➡️ Tip: Consume them immediately after cooking, without reheating.

🥚 2️⃣Eggs

After heat treatment, the structure of the egg white changes. Leaving eggs at room temperature or reheating them can increase the risk of bacteria such as Salmonella growing , which can cause food poisoning.
➡️ Tip: Do not leave boiled or fried eggs out of the refrigerator and do not reheat them more than once.

🍄 3️⃣Mushrooms

Mushrooms are extremely sensitive to temperature and moisture. When stored in the refrigerator for a long time, their proteins break down, and when reheated, substances that make digestion difficult may be produced.
➡️ Tip: Eat them within the day they are cooked and do not subject them to repeated heat treatment.




🍚 4️⃣Rice

Rice may contain spores of the bacteria Bacillus cereus , which survive even after cooking. If rice is left at room temperature, the spores multiply and produce toxins that can cause stomach upset and vomiting.
➡️ Tip: Once the rice has cooled, refrigerate it immediately and consume within 24 hours. Do not reheat it more than once .

🐟 5️⃣Seafood (fish, shrimp, shellfish)

Seafood is very sensitive and spoils quickly, even in the refrigerator. When reheated, the proteins are destroyed, and in some cases, bacteria can cause severe food poisoning.
➡️ Tip: Cook only as much as you will eat immediately and avoid reheating.

⚠️Conclusion

Health is more valuable than any portion saved. It is better to prepare as much food as you will eat at once than to risk reheating or standing.
Fresh food is not only safer, but also tastier and more nutritious.

This article is for informational purposes only. Do not self-medicate and always consult a qualified medical professional or nutrition expert before applying any information from the text. The editorial team does not guarantee results and is not responsible for any damages resulting from its use.

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