In the processing of canned foods, many additives, salt or sugar are added, and compared with those fresh foods, there are fewer nutrients. When processing canned food, the vitamins in canned food, whether meat or fruit, have been destroyed a lot.
Especially, vitamin B 1 is easily destroyed when it is heated, and it can lose15% ~ 25%, vitamin B2 can lose 10%, and calcium pantothenate can lose 20% ~ 30%. Vitamin C in canned fruits is almost completely destroyed.
Other foods harmful to health:
Processed meat products: Ham, sausage and other processed meat products not only lose the freshness of meat, but also add nitrite, salt and other additives, which will reduce cell vitality and accelerate the aging of the body.
The World Health Organization has also listed processed meat products as clear carcinogenic food for human beings. According to research, eating processed meat products can lead to colorectal cancer. For every 50g of processed meat products consumed in one day, the risk of colorectal cancer will increase 18%.
Extended data:
Identifying the safety of canned food;
1, look at the packaging and labeling. First look at whether the outer packaging is neat and clean, whether the handwriting is clearly printed, and whether the label is complete and formal. The labels of canned food produced by regular manufacturers are complete and clear, and should be marked with product name, factory name, address, ingredient list, net content, solid content, implementation standard code, quality grade and shelf life. Look at the product label and pay attention to distinguish the certification marks. Especially look at the production date and shelf life of food, and pay attention to whether the food exceeds the shelf life.
If the trademark printing is rough, the printing of the factory place, factory name, production date and product name is incomplete; The solder at the welding part of the tin can is incomplete and uneven, and there is iron tongue and glue flowing at the curling part; The iron cover of the glass bottle is rusted, which may be inferior.
2, look at the ingredients list, whether it contains preservatives. There are many kinds of preservative additives to prevent food from spoilage, such as sorbic acid and benzoic acid, but according to the relevant regulations of the state, canned food cannot contain preservatives. However, some illegal enterprises use preservatives in violation of laws and regulations in order to cover up their improper management of sanitary environment during food processing, inhibit the proliferation of microorganisms in food, maliciously extend the shelf life of food.
People's Network -5 foods make women accelerate aging.
People's Network-How to Identify the Safety of Canned Food