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Explainer
Over half of the world’s population suffers from lactose malabsorption, the condition behind lactose intolerance. Learn how to avoid its worst symptoms.
Words by Grace Hussain
If you suspect that you are suffering from lactose intolerance, you should consult with your primary care physician or another health professional to make sure you consume enough nutrients while managing your diet to avoid uncomfortable digestive symptoms. Over half of the world’s population suffers from lactose malabsorption, the condition behind lactose intolerance. Though dairy, and thus lactose, seems to be lurking within some unexpected foods—such as lunch meat and margarine—with careful attention to ingredient lists it’s possible to stay free of the uncomfortable symptoms associated with lactose intolerance.
Those that suffer from lactose intolerance experience a range of digestive system symptoms, such as diarrhea, gas, and bloating, after consuming foods that contain lactose. Lactose itself is a type of sugar found in dairy products such as milk, cheese, and ice cream.
The negative reaction to lactose is down to a condition called lactose malabsorption, caused by the small intestine’s inability to break down the lactose in dairy foods. Different people have different levels of lactose tolerance, as their bodies are able to process varying levels of lactose. Not everyone who has lactose malabsorption experiences the digestive symptoms that characterize lactose intolerance, and it’s only people who do show some level of adverse digestive reaction who are considered lactose intolerant.
Experts suggest that about 68 percent of the world’s total population experience lactose malabsorption. In the United States, 38 percent of people are estimated to have the condition. Lactose malabsorption is more common in certain parts of the world. For example, in Africa and Eastern Asia lactose malabsorption is more common than in northern Europe. Within the United States, the communities most likely to have lactose malabsorption and to display the symptoms of lactose intolerance are African Americans, Indigenous people, East Asian Americans, and Latin Americans.
For lactose intolerance to be diagnosed, symptoms of the digestive system must be experienced. All of the symptoms associated with lactose intolerance are associated with the digestive system. Some people also suffer from a milk allergy which is not the same thing as lactose intolerance. A milk allergy is a disorder of the immune system, not the digestive system.
Sometimes lactose intolerance is due to an underlying condition, so when this is treated the symptoms resolve. In most cases, however, lactose intolerance is not treatable and is best managed by reducing, or eliminating, the lactose in one’s diet. If you suspect you may be suffering from lactose intolerance, you should consult with a physician to determine whether there is an underlying condition present and, if not, determine a management plan that enables you to get all the nutrients you need while avoiding discomfort.
For most people suffering from lactose intolerance, omitting certain foods and substituting others is an effective way of managing the condition. For example, choosing a plant-based milk such as oat or soy milk allows you to consume your cookies and cereal with milk without having to experience the side effects associated with dairy. However, opting out of dairy products is often not enough, as lactose has made its way into a vast array of foods that one might not expect. Being cautious and checking the ingredients of a new product helps to make sure you aren’t inadvertently eating dairy.
There are a variety of ingredients to look out for when cutting lactose from one’s diet, as dairy has been processed into a vast array of ingredients. Within the United States, foods containing common allergens such as milk must be labeled. These foods must either print the dairy item in bold within the ingredient list, or underneath the ingredient list say “contains:” followed by the allergen—so, in the case of milk, “contains: milk”. Additives and ingredients to be cautious of include:
Thankfully, there are a variety of foods, other than dairy, that can provide ample amounts of calcium and vitamin D. When these foods are consumed as part of our routine diet, there is often little concern over omitting dairy.
Adopting a diet free of lactose may seem daunting at first, as dairy products play a large role in many of our diets. However, taking the time to check labels and reaching for items marked dairy-free, plant-based, or vegan can be a good way of getting started.
A day of eating lactose-free could still include any number of meals. You might choose a glass of oat milk with dairy-free chocolate chip pancakes for breakfast, a dairy-free submarine sandwich with vegan ranch or hummus and veggies from Publix for lunch, a snack of fresh fruit, and a dinner consisting of cheesy vegan baked spaghetti.
One of the best ways to ensure there are always plenty of options for those with lactose intolerance is to encourage the widespread introduction of plant-based food items by companies and restaurants. There are many campaigns through which you can take action to encourage public and private institutions to increase plant-based options. Having more plant-based and dairy- and egg-free options on menus means a better, more inclusive eating experience for millions of people.