Experts say that you can t eat leftovers overnight, what is the scientific basis for that?

Updated on science 2024-07-05
24 answers
  1. Anonymous users2024-02-12

    Introduction: In daily life, leftovers are a common thing in every family, and some elderly people will feel that it is a pity to have more leftover meals, so they will choose to put them in the refrigerator and heat them up again the next time they eat. However, eating leftovers often is very bad for the body, and leftover meals in the refrigerator are easy to cause bacteria to breed, and eating them is easy to produce some diseases.

    Experts say that you can't eat leftovers overnight, what is the scientific basis for that? Let's find out.

    For example, leftovers stored in the refrigerator are easy to lead to contamination by germs, especially if they are eaten directly without heating after being taken out of the refrigerator, it is easy to cause food poisoning, and mild ones will have nausea and vomiting, and severe diarrhea will have symptoms of shock. There are also vitamins in leftovers and other vitamins that have been dissolved in water generally have no nutrients and basically disappear, and if you eat leftovers regularly, it is easy to cause malnutrition, which can cause physical decline.

    People who eat leftovers know that the taste is not very good, if you often eat leftovers, you will feel that your appetite is not good, the calories required by the body will not be replenished, it is easy to affect your health, and some bacteria will breed in the raw vegetables, long-term eating is easy to cause bacteria to enter the intestines, and will cause intestinal damage, diarrhea and constipation, and some uncomfortable symptoms will affect your daily normal life and work.

    For example, leftovers contain bacteria, which will promote the conversion of nitrite into nitrite, which will make nitrosamines, which are carcinogenic, such as eating leftovers for a long time will increase the risk of cancer. Therefore, if you can avoid eating leftovers, try not to eat them, and try to ensure that you can eat fresh meals every time, which is delicious and delicious. And the leftovers in the house should not be left for too long, and they must be cooked thoroughly before the next meal, and they should not be heated more than once, which has no nutritional value.

  2. Anonymous users2024-02-11

    The nitrite produced is a carcinogen. If leftovers are stored for too long, a large amount of nitrite will be produced, and if people eat it, the intake will exceed the standard, and the mild will vomit and diarrhea, and the severe will get cancer.

  3. Anonymous users2024-02-10

    There will be a lot of bacteria in leftovers, and it will also produce harmful substances, which will lead to diarrhea, and there will be many problems, which have the risk of causing cancer and have many hidden dangers to the health of the body.

  4. Anonymous users2024-02-09

    These foods can lead to malnutrition, cause problems in the body, bring great harm to the body, easily lead to stomach problems, easily lead to gastrointestinal discomfort, and easy to diarrhea.

  5. Anonymous users2024-02-08

    The basis is that there will be a lot of bacteria in the overnight meal, and then there will be some other carcinogens, which will affect our health, so experts say that the overnight meal should not be eaten.

  6. Anonymous users2024-02-07

    This is because overnight leftovers contain nitrite, and if you consume too much nitrite, it can have a bad effect on your body, so it is best not to eat overnight leftovers.

  7. Anonymous users2024-02-06

    I don't think the experts' words can be fully trusted, and the key point about leftovers is that they are spoiled or severe to the point of mildew. Whether the leftovers are spoiled or moldy, it means that there are bacteria and carcinogens in them, and the most intuitive is to have diarrhea or poisoning. That's what we should pay attention to when it comes to leftovers.

    1. A lot of the time they're confusing concepts.

    Leftovers mainly refer to carcinogens, or this exceeds the standard. The problem is the amount of needles, how can you talk about exceeding the standard without measurement, what I want to say is, how many leftovers do you have to eat each time to reach that measurement standard, whose family will have so many leftovers left at one time.

    Second, every family can't return to this topic, and no one can say that every meal is just enough to eat.

    Since I was sensible, the leftovers at home were eaten by my parents after the next hot meal. And there will not be a lot left over from each meal, as long as it is stored properly, it will not spoil, and it will not affect the body when it is heated thoroughly.

    3. Now every household has a refrigerator, and leftovers are better preserved.

    Although there is no standard for the temperature when you put it in the refrigerator now, there are two arguments on the Internet that there is a fight, one says to put it in the refrigerator after it cools, and the other is to put it in the refrigerator while it is hot to reduce the reproduction of bacteria. I don't really know which way to do it, but there's a leftover that needs to be sealed so it can be stored in the fridge for not too long. What I do now is to eat the delicious food as much as possible at noon, and if the rest is heated and eaten at night, it will only be stored for a few hours, and it will not affect the quality of the leftovers.

    In this way, basically the leftovers of the day will not be overnight. Keep your family healthy and reduce the chance of getting sick.

    So, although leftovers can be eaten, there are a few things to pay attention to:The first is to seal well, the second is not to store for a long time, the third is to heat thoroughly, and the fourth is to pay attention to the best possible dishes leftover. For example, green vegetables, if reheated, there is no nutrition, and there are seafood leftovers as much as possible.

    If you can do a few things, you won't have a problem eating leftovers, and it won't affect your health.

  8. Anonymous users2024-02-05

    20-30 degrees Celsius is the optimal temperature for bacteria to multiply, and the longer the food is left at room temperature, the more and less safe the microorganisms will multiply. Make sure that the food you want to leave overnight is best packed in the refrigerator while it still has residual heat, although it takes a little more electricity, but it is safer.

  9. Anonymous users2024-02-04

    I didn't know, because my family's overnight dishes were stored in the refrigerator, and after eating for so many years, nothing bad happened.

  10. Anonymous users2024-02-03

    Of course, I know that this is because there are a lot of bacteria growing in overnight dishes, which will affect your health after eating.

  11. Anonymous users2024-02-02

    1. Leftovers can be eaten within a certain period of time as long as they are kept reasonably overnight.

    2. Generally, leftovers will be left for a long time, and there will be more bacteria, which will decompose the protein, carbohydrates, fats, etc. in the food, which will reduce the nutritional value of the food, and even lead to the spoilage of the food, which will cause great harm to the body after food.

    3. Therefore, leftovers are not inedible, but should be stored reasonably, as long as they are reasonably preserved, they can be eaten within a certain period of time. It also doesn't have much impact on the body.

    4. Boiled water can be drunk overnight. In fact, after the water is boiled, the bacteria can basically be destroyed, and in clean and tidy air, the growth of bacteria is very slow or even impossible to grow, so even if it is "overnight" cool and white, there is no need to worry about getting infected with bacteria.

  12. Anonymous users2024-02-01

    If the food left over from the previous day is moldy because it has not been stored well, or is fluffy as the rednecks say, it can't be food. If you eat, you may get sick, not to talk about cancer, at least you will have a bad stomach, diarrhea or stomach pain. According to current scientific research, aflatoxins and nitrites can actually cause cancer.

    These two harmful substances are mainly found in leftovers. The incidence of cancer was much lower than it is now. So let's talk about my parents' generation.

    Due to the reform and opening up, the economy has developed rapidly, and the land has become very abundant. But my parents also eat garbage every day. How could they be willing to spill meat and fish that they hadn't eaten today?

    Food doesn't want to go to waste. There is a shortage of materials and vegetables. We can try to control the food as much as possible when cooking.

    Even if we can't finish it, we can't throw it away easily. We can keep it fresh in the fridge. We can eat it next time.

    The optical drive is not in our mouths!

    How much we wasted, it was that the Kada family cooked a lot of dishes every Spring Festival. The meal is over. Then we went on to eat it.

    No one spilled the meals. Relatively speaking, no one has affected your health by eating these foods. Excessive nitrites, which are very harmful to your health.

    It doesn't matter how much you cook, how much you eat, how much you ask. Most of the opinions of experts are correct, but they are different from our habits. There was a misunderstanding.

    A lot of people here eat leftovers all night. I've seen with my own eyes that some people eat leftovers not just overnight, but for three or four days. Some people change the color and taste, and they are still eating, but they are in good health, and there's nothing wrong with that.

    Lefty mainly refers to carcinogens, or exceedances. The problem is the number of needles. If there is no measurement, why say it is exceeded?

    I mean, how many leftovers do you have to eat in order to satisfy the measurement pattern? Whose family would leave so many leftovers at once. For example, if you can't eat food overnight, the concept of language is wrong.

    In fact, it can be eaten completely. The premise is that there will be no health problems at room temperature in winter, but some nutrients will be lost. It will be stored in refrigerators at other stations.

    In particular, it should be heated to a sufficient temperature before eating.

  13. Anonymous users2024-01-31

    It is best not to eat it, because such meals no longer have any nutrients, but simply fill the stomach, and it is difficult to maintain the normal operation of some of our organs.

  14. Anonymous users2024-01-30

    I think it's best not to eat any more overnight meals, because I don't know what substances will spoil in the overnight meals, and there is a possibility of diarrhea.

  15. Anonymous users2024-01-29

    Overnight meals can be eaten, it should be heated before eating, smell if there is any change in taste and sourness, my family always makes meals at night, and the second morning is heated as a breakfast meal to use, I have been eating for more than 20 years, there is no problem.

  16. Anonymous users2024-01-28

    Whether you can eat overnight food depends on the storage conditions. Actually, it's not about what foods you can't eat overnight, it's about how you store them overnight. For example, it is best not to eat leftovers, leftovers, soups, and lo-mei that have been left at room temperature overnight, because it is easy for bacteria to multiply and cause diarrhea and other diseases.

  17. Anonymous users2024-01-27

    If it's hot, the overnight meal left out will be sour and rancid, so you won't be able to eat it, and the standard for judging whether you can eat it is to smell it first and taste it, and if it has a sour and rancid taste, you can't eat it.

  18. Anonymous users2024-01-26

    Overnight dishes are generally not allowed to be eaten anymore, because after a long period of time, the chemical components in the food will be contaminated by foreign bacteria, and it is easy to have abdominal pain and diarrhea after use.

  19. Anonymous users2024-01-25

    Overnight meals should not be eaten, no matter what kind of meal is left, basically harmful substances will be produced in more than half an hour.

  20. Anonymous users2024-01-24

    Eating leftovers is not good for your health. What is the truth? First of all, it is necessary to clarify the definition of an overnight dish.

    An overnight dish is not a dish that has been left out overnight, but has been left out for more than 8-10 hours. So in daily life, although many dishes are not left overnight, they are also overnight dishes, more precisely, they should be "leftovers".

  21. Anonymous users2024-01-23

    I don't think you can eat it, if you eat it regularly, you may get cancer, and it will also cause some problems with your health.

  22. Anonymous users2024-01-22

    Overnight meals are generally not recommended. However, if it is well stored and has no peculiar smell, it is often edible.

  23. Anonymous users2024-01-21

    Leftovers from the overnight are edible. The general recommendation of the scientific community is that leftovers and leftovers should be stored at room temperature for no more than 4 hours, and not more than 2 hours when the temperature is high. When leftovers and leftovers are still hot, put them in a box and put them in the refrigerator, although it takes a little more electricity, but it is safer.

    This is because bacteria multiply fastest at 20-30, so it is important to cool down to refrigerated conditions as soon as possible.

    In addition, leftovers and leftovers need to be thoroughly heated when eaten again, and they should not be stored in the refrigerator for too long. For cold vegetables, it is generally recommended to eat as much as you want, and throw away the rest.

  24. Anonymous users2024-01-20

    Because leftovers contain a lot of nitrate, after a night, leftovers are affected by oxidation by the air and bacteria, which converts nitrate into toxic nitrite, so overnight leftovers cannot be continued to eat.

    According to scientific determination, some overnight vegetables, especially overnight green leafy vegetables, not only have their nutritional value destroyed, but also produce disease-causing nitrite. The amount of nitrite in stored vegetables increased with the extension of storage time and the increase of temperature, while the increase of nitrite was less if the vegetables were refrigerated in the refrigerator (2-6 degrees Celsius).

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