Do you take leftovers out of the fridge and eat them straight away, without reheating? The habit may seem convenient and save time and effort, especially on busy days. But it raises questions about how cold food affects digestive health and the body in general. Here is what to know about cold food and the right way to store it.
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1. Stomach discomfort and digestive cramps
Some people may feel stomach discomfort or cramps after eating very cold meals, particularly if they have digestive sensitivity or previous digestive problems. This feeling may be linked to how the individual responds to the food's temperature, rather than to the food being cold in itself.
It is important to note that these symptoms are not inevitable, and do not mean cold food causes digestive problems in everyone. If you notice discomfort recurring after certain meals, you can try leaving the food for a few minutes so it gets closer to room temperature, and see how your body responds.
2. Sudden headache from very cold food
Have you ever had a sudden headache after eating ice cream too quickly? It is known as an "ice cream headache", a temporary response that can occur when very cold food touches the roof of the mouth.
It is linked to rapid changes in the blood vessels and nerves involved in sensation in the head area. The headache usually lasts a short time and then disappears on its own. You can reduce the chance of it happening by eating cold food slowly and avoiding swallowing large amounts at once.
3. Increased tooth pain and sensitivity
Food taken straight from the fridge can be uncomfortable for people with sensitive teeth. Low temperatures can stimulate the nerve endings inside the teeth, causing sudden pain or a tingling sensation.
This is more likely in people with enamel erosion, receding gums or cavities. So if you feel repeated pain when drinking cold water or eating iced foods, it is better to see a dentist to find the cause and treat it, rather than simply avoiding cold foods. This information comes from the newsbreak website.
4. Difficulty swallowing for some people
Very cold drinks and foods may cause discomfort when swallowing in some people with oesophageal disorders. This is because the oesophagus relies on regular muscular contractions to push food towards the stomach, and temperature may affect the sensation or the movement response in some people.
This does not mean cold food causes oesophageal problems in healthy people, but it may worsen symptoms in those who already have swallowing difficulties or oesophageal spasms. If swallowing difficulty recurs, see a doctor for an assessment.
You can reheat food before eating it
Setting aside the temperature at which a meal is eaten, the way it is stored remains the most important factor in preventing food poisoning. Perishable foods need to be refrigerated at 4°C or below, in clean, airtight containers.
It is also advised not to leave cooked meals outside the fridge for more than two hours, as bacteria can multiply quickly at unsuitable temperatures. In very hot weather, this period should be reduced to one hour. Smell and appearance alone should not be relied on to judge whether food is safe. This is how long cooked food can safely stay out of the fridge.
