What happens if you ignore lactose intolerance?

What happens if you ignore lactose intolerance?


Lactose intolerance is a common digestive disorder that affects the body’s ability to digest lactose, a sugar found in milk and dairy products. People with lactose intolerance lack the enzyme lactase, which is responsible for breaking down lactose into simpler sugars that can be absorbed by the body. Ignoring lactose intolerance can lead to various uncomfortable symptoms and potential long-term health consequences.

Symptoms of Ignoring Lactose Intolerance

1. Digestive Discomfort: One of the most immediate and noticeable effects of ignoring lactose intolerance is experiencing digestive discomfort. Symptoms may include bloating, gas, diarrhea, and stomach cramps. These symptoms occur because undigested lactose remains in the digestive system, causing fermentation and the production of gas and other byproducts.

2. Nutrient Deficiencies: Lactose intolerance can lead to nutrient deficiencies if dairy products are a significant source of essential nutrients in an individual’s diet. Milk and dairy products are rich in calcium, vitamin D, and other nutrients. Ignoring lactose intolerance and avoiding these foods without finding suitable alternatives may result in inadequate intake of these essential nutrients.

3. Impact on Bone Health: Calcium and vitamin D are crucial for maintaining strong and healthy bones. Ignoring lactose intolerance and not finding alternative sources of these nutrients can increase the risk of developing osteoporosis, a condition characterized by weak and brittle bones. Over time, this can lead to an increased susceptibility to fractures and other bone-related issues.

4. Disruption of Gut Microbiota: Lactose intolerance can disrupt the balance of gut microbiota, the community of microorganisms residing in the digestive system. The undigested lactose can serve as food for certain bacteria, leading to an overgrowth of these bacteria and a decrease in beneficial bacteria. This imbalance may result in digestive problems, weakened immune function, and increased susceptibility to infections.

Long-Term Health Consequences

Ignoring lactose intolerance and consistently consuming lactose-containing foods can have long-term health consequences. Some of these include:

1. Increased Inflammation: Chronic consumption of lactose by individuals with lactose intolerance can lead to chronic inflammation in the digestive system. This inflammation can contribute to the development of conditions such as irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD).

2. Irritable Bowel Syndrome (IBS): Ignoring lactose intolerance can worsen symptoms of IBS, a common digestive disorder characterized by abdominal pain, bloating, and changes in bowel habits. Lactose intolerance can trigger or exacerbate IBS symptoms, leading to increased discomfort and reduced quality of life.

3. Impact on Mental Health: Prolonged digestive discomfort and other symptoms associated with lactose intolerance can have a negative impact on mental health. Chronic gastrointestinal symptoms can lead to anxiety, depression, and reduced overall well-being.

4. Development of Food Aversion: Ignoring lactose intolerance and experiencing frequent digestive discomfort can lead to a psychological aversion to lactose-containing foods. This aversion may result in a restricted diet, potentially leading to nutrient deficiencies and further health complications.


Ignoring lactose intolerance can have significant consequences on both short-term comfort and long-term health. It is important for individuals with lactose intolerance to be aware of their condition and make necessary dietary adjustments to avoid discomfort and potential complications. Seeking guidance from healthcare professionals or registered dietitians can help in managing lactose intolerance and ensuring a balanced and nutritious diet.


– Mayo Clinic: www.mayoclinic.org
– National Institute of Diabetes and Digestive and Kidney Diseases: www.niddk.nih.gov
– International Foundation for Gastrointestinal Disorders: www.iffgd.org