Causes and Symptoms of Lactose Intolerance
Lactose intolerance is a common issue faced by many people worldwide. This condition occurs when the body cannot properly digest lactose, a natural sugar found in milk and dairy products. In this article, we will explore the main causes and symptoms of lactose intolerance, as well as provide helpful tips for those who have this condition.
Causes of lactose intolerance
Lactose is composed of two simple sugars – glucose and galactose. Its digestion requires the enzyme lactase, which is produced in the small intestine. When there is insufficient lactase in the body, lactose cannot be properly broken down and absorbed. This leads to various symptoms of lactose intolerance.
The main causes of lactose intolerance include:
- Primary lactose intolerance. This is the most common type, occurring due to decreased lactase production with age. Many people begin to experience symptoms of lactose intolerance during adolescence or adulthood.
- Secondary lactose intolerance. This type occurs due to damage to the small intestine, which can be caused by various conditions such as coeliac disease, intestinal infections, or inflammatory bowel diseases.
- Congenital lactose intolerance. This is a rare genetic condition where newborns cannot produce lactase from birth.
Symptoms of lactose intolerance
Symptoms of lactose intolerance can range from mild to severe, depending on the level of lactase deficiency and the amount of lactose consumed. They usually appear within 30 minutes to 2 hours after consuming dairy products. The main symptoms include:
- Bloating. After consuming products containing lactose, a feeling of bloating and abdominal discomfort may occur.
- Abdominal pain and cramps. Pain and cramps in the abdomen are typical symptoms that can be very unpleasant.
- Diarrhoea. Undigested lactose can cause watery diarrhoea as it draws water into the intestine.
- Gas production. Undigested lactose is fermented by bacteria in the large intestine, leading to the production of gases such as hydrogen, methane, and carbon dioxide.
- Nausea. In some people, consuming lactose can cause nausea, sometimes accompanied by vomiting.
Tips for those with lactose intolerance
For people with lactose intolerance, it is important to find ways to manage their symptoms and ensure their body receives necessary nutrients. Here are some tips:
- Choose lactose-free or low-lactose products. Today, there are many alternative products available, such as lactose-free milk, yoghurts, and cheeses.
- Consume probiotics. Probiotics can help improve gut health and reduce symptoms of lactose intolerance.
- Take lactase supplements. These supplements can help digest lactose and avoid unpleasant symptoms.
- Consult a dietitian. A comprehensive nutrition programme developed by a professional dietitian, such as Olga Bezugla, can help balance your diet and avoid health issues. More information can be found at this link.
Lactose intolerance can be challenging, but with the right approach and support from specialists, you can live a full and healthy life.