1. Fried Food
This type of food is high in calories and contains high levels of oil and oxidized substances. Frequent consumption can easily lead to obesity and is the most dangerous food causing hyperlipidemia and coronary heart disease. During the frying process, a large number of carcinogenic substances are often produced. Studies have shown that people who frequently eat fried food have a much higher incidence of certain cancers than those who do not eat or rarely eat fried food.
2. Pickled Food
During the pickling process, a large amount of salt is required, which leads to an excessive sodium content in such food, placing a heavier burden on the kidneys of those who consume it frequently. Furthermore, the high concentration of salt can severely damage the gastrointestinal mucosa, so those who often eat pickled food have a higher incidence of gastrointestinal inflammation and ulcers. Most importantly, eating too much pickled food can accelerate aging in women.
3. Canned Food
Whether it's fruit or meat canned food, most of the nutrients are severely destroyed, especially various vitamins which are almost completely depleted. In addition, the protein in canned products often becomes denatured, greatly reducing its digestibility and absorption rate, and significantly diminishing its nutritional value. Moreover, many canned fruits contain high levels of sugar, which is consumed in a liquid form, greatly increasing the absorption rate of sugar. This can cause a sharp rise in blood sugar shortly after consumption, increasing the burden on the pancreas. At the same time, due to their high energy content, they are suspected of causing obesity.
4. Processed Meat Products
This type of food contains a certain amount of nitrites, so it may pose a potential risk of causing cancer. In addition, due to the addition of preservatives, colorings, and color fixatives, it places an extra burden on the human liver. Also, products like ham are mostly high-sodium foods. Consuming large amounts can lead to excessive salt intake, causing blood pressure fluctuations and kidney damage.
5. Peroxides
This is a peroxide of unsaturated fatty acids. For example, cooking oil that has been used to fry fish, shrimp, meat, etc., will generate peroxides when left for a long time. The same applies to dried fish and cured meat that has been left in the sun for extended periods.
Long-stored cookies, pastries, oil tea noodles, and oils, especially those that are prone to having a rancid smell, will produce peroxides after the oil becomes rancid. Researchers have found that once peroxides enter the human body, they can cause great damage to the body's acid systems and vitamins, and accelerate the process of aging.
6. Limescale
Tea sets or water utensils will develop limescale over time. If not cleaned in time, drinking from them frequently can cause lesions in the digestive, nervous, urinary, blood-forming, and circulatory systems, leading to aging. This is because limescale contains harmful metal elements such as cadmium, mercury, arsenic, and aluminum.
Scientists once conducted a chemical analysis of the limescale from a thermos that had been in use for 98 days and found high levels of harmful metal elements: 0.034 mg of cadmium, 0.44 mg of mercury, 0.21 mg of arsenic, and 0.012 mg of aluminum. These harmful metal elements are extremely dangerous to human health.
7. High-Temperature Cooking Oil Fumes
Foreign research institutions have pointed out after comparative analysis that Chinese people prefer to cook with high-temperature cooking oil, with stove temperatures being about 50% higher than those in Western homes. Typically, under the catalysis of high heat, cooking oil releases smoke containing butadiene components. Long-term and heavy inhalation of this substance not only alters a person's genetic immune function but also increases the risk of lung cancer.
Research reports indicate that rapeseed oil has a greater carcinogenic risk than peanut oil, because high-temperature rapeseed oil releases 22 times more butadiene components than peanut oil. To avoid this harm, when cooking, it is best not to heat the oil beyond its boiling point; using hot oil is preferable. This can prevent health damage from smoke and soot and the formation of facial wrinkles.