Reheating leftovers is a common habit, but some foods can turn harmful when warmed again.

Tea, for instance, loses its flavor and forms toxins like excess tannins that cause acidity.

Spinach, beetroot, and lentils contain nitrates that convert into carcinogenic nitrosamines upon reheating.

Rice, if left out too long, can grow Bacillus cereus bacteria, leading to vomiting and food poisoning.

Paneer loses its protein quality and causes digestive issues when reheated. Similarly, bread, when microwaved, can form toxic starch compounds that upset digestion.

Experts warn that these changes not only reduce nutrition but may increase long-term health risks. To stay safe, store leftovers properly and avoid reheating the above foods. Always prefer freshly prepared meals, especially for children and the elderly. A little caution in the kitchen can protect you from major health concerns.

Disclaimer: Consult your doctor for food safety advice tailored to you.