Lactose intolerance, also known as lactose indigestion or lactose malabsorption, refers to a state in which no lactose that breaks down lactose is produced in the human body. It is a congenital hereditary expression that occurs frequently in Asia.We may know a lot Lactose intolerance signs
Since the intestines of the patient cannot secrete enzymes that break down lactose, the lactose is digested and absorbed and is used by the human body. Lactose is broken down by bacteria into lactic acid in the intestine, thereby destroying the alkaline environment of the intestine, and causing the intestinal tract to secrete a large amount of alkaline digestive juice to neutralize lactic acid. Therefore, mild diarrhea is easy to occur.
The main symptom is the symptoms of diarrhea and bloating after ingesting a large amount of lactose. Whether the symptom is genetically determined or not is contagious. Some people's symptoms will be alleviated or aggravated over time.
Fresh milk near me is the main food for young children before weaning. Lactose intolerance during this period should promptly consult a doctor to avoid malnutrition. Lactose intolerance that occurs after weaning is common among people other than white races.
People with lactose intolerance do not develop symptoms such as diarrhea immediately after taking a small amount of lactose, but only when the intake exceeds a certain amount. Therefore, most people with lactose intolerance can still drink milk, but not excessive. For example, although more than 90% of Japanese people have lactose intolerance, most people can drink milk drink 200 ml of milk a day without any discomfort.
If ordinary people do not drink milk regularly, there will be diarrhea, which is also a manifestation of lactose intolerance. Lactose will disappear in the human body if it is not used for a long time. With long-term drinking milk, lactose will regenerate, so diarrhea begins. People should insist on drinking milk for a while, and then there will be no diarrhea.
However, yogurt is fermented to ferment the lactose in milk into lactic acid high, so it does not cause symptoms of human diarrhea in babies. The value of milk and yogurt is the same.Lactic Acid Bacteria test is good way to test yogurt materials
There is no consistent conclusion on the timing and location of this mutation. Some people think that it was independent in Sweden and the Arabian Peninsula in the first 4,000 years and gradually merged in the expansion. Some people think that it was extended to other places after the emergence of the Middle East in the last 4,500 years. Others believe that the mutation appeared independently in the Tutsi of East Africa at a later date.
The current situation is that most of the ancestors of Western Europe have the mutation in their genes (meaning they can digest lactose for life), while East Asians, sub-Saharan Africans, and Native American and Oceanic aborigines do not. It means that they will develop lactose intolerance in adulthood). On average, 75% of the world's people develop symptoms in adulthood, so it is better to call it a disease than to call it a natural condition.
In the absence of lactose, lactose ingested by humans cannot be digested and absorbed into the blood but is retained in the intestines. A large amount of gas is generated during the process of intestinal bacterial fermentation to break down lactose. Causes bloating and farting. Excess lactose also increases the osmotic pressure inside the intestine, preventing the absorption of water and causing diarrhea.
Mammalian larvae begin to gradually reduce lactose synthesis after weaning. Human children usually lose 90% of their lactose digestive capacity when they are 4 years old, but the difference between them is great. In some races, mutations occur on chromosome 2, which can stop the reduction of lactose, so these people can digest lactose for life.