The Maneka Gandhi column: Lactose intolerant? Here is what you need to know

Do you experience bloating, intestinal cramps and excessive gas in your stomach often? This could be lactose insensitivity which is a very common reason for digestive problems.

Lactose is a sugar found in milk and milk products. Lactose should be broken down in your upper intestine by the enzyme lactase. Most people in India have varying degrees of lactose insensitivity, making it difficult for them to digest sugar. But since the pain and bloating differs, people often don’t connect the two.

Technically, as infants, humans produce lactase in our digestive systems and can digest milk. As we enter adolescence, the enzyme in the body starts decreasing and with it the ability to break down lactose. This is natural because milk is for infants and humans are the only mammals that drink milk beyond infancy.

Seventy-five percent of Africans and Caribbeans, 50 percent of Europeans, 35 percent of Americans and almost all of theAsians have certain degrees of lactose intolerance. The only people who can really digest milk are Northern Europeans and Americans of North European descent who have a genetic mutation to deal with lactose. Unfortunately, it was these North Europeans who colonized much of the world and they brought their eating habits with them; which is why America, colonial Africa and Asia started drinking milk.

Seventy-five percent of Africans and Caribbeans, 50 percent of Europeans, 35 percent of Americans and almost all of theAsians have certain degrees of lactose intolerance. Getty images

Almost all of theAsians have certain degrees of lactose intolerance. Representational image. Getty images

So, while your background defines whether you can tolerate dairy products or not, most governments promote milk products aggressively, and food manufacturers find milk sugar a cheap ingredient, therefore adding it to wide variety of processed products.

How sensitive you are depends on how much lactase enzyme your body is still producing. Some people can drink a glass of milk without apparent side effects. Some can have just a spoonful in their tea or coffee or on their cereal and it triggers off a gastric upset.

Why does lactose cause gas and abdominal pain?

When your body does not produce enough lactase in your small intestine, all your milk/milk products pass through to the large intestine undigested. Bacteria in your colon love lactose and quickly ferment it. This fermentation creates lots of gas. Due to the high levels of protein in the milk, the gas is very smelly. These extra gases bloat the intestine causing spasms and cramps. When the pressure from the gas interferes with water absorption in the colon it causes diarrhoea. Some people experience bloating and flatulence anywhere between 15 mins and 2 hours after consuming milk or its products. Gurgling or rumbling sounds in your belly, loose stools or throwing up are common symptoms.

While passing wind almost immediately is the best thing to happen, apart from being uncomfortable it is also embarrassing for you - both the smell and the noise are not socially acceptable. Smell has a decisive role in changing mood and it becomes very annoying for people to share the same space.

Since this is such a common problem, why do most people not realize it? One of the reasons is that since food containing lactose (for instance, paneer included in vegetables) travels much slower than liquid. It may take hours for the symptoms to show. You could have eaten something in the morning and end up with gas in the evening without making any connection between the two.

Food and drinks that contain lactose

Milk is obviously the first product that you should avoid, especially cow and goat milk. All dairy milk, even skimmed milk, has extremely high levels of milk sugar. All protein powders contain concentrated lactose. Butter and all types of cream contain relatively less lactose than milk but enough to cause you trouble. Freshly made cheese – feta, paneer etc – contains a large lactose amount.  The harder the cheese, the less lactose it contains. For instance, parmesan will have much less than mozzarella. Ice cream is particularly bad because not only is it made from milk, but manufacturers add extra milk sugars to sweeten it. Home-made curd without any flavours has the least amount of lactose because it has good quality. But commercial yogurt is simply thick and sweet milk with very little beneficial bacteria in it. All yogurts are made with live cultures, but many yogurts go through a process called “heat treatment” that kills the bacteria. Check the label for the words “contains live and active cultures”.

Freshly made cheese – feta, paneer etc – contains a large amount of lactose.  The harder the cheese, the less lactose it contains. Getty images

Freshly made cheese – feta, paneer etc – contains a large amount of lactose.  The harder the cheese, the less lactose it contains. Getty images

Canned soup has lactose – especially if it is “creamy”. So do packaged savoury snacks, especially if they are cheese flavoured. Milk chocolate, cakes, puddings, biscuits, doughnuts have lactose, as do premade sauces, gravies and salad dressings like mayonnaise. Breakfast cereals are sometimes made with milk powder or solids and then you eat them with more milk. Bread, baked goods, instant breakfast drinks, instant potatoes, instant soups, pancake, cookie, and biscuit mixes, margarine and salad dressings too. Even processed meats like sausages, luncheon meat have lactose. Pizza with its combination of soft cheese, bread and perhaps processed meat is the worst thing you can eat. Start looking at labels for the words lactose, milk solids, milk powder, milk protein, non-fat dried milk, casein, sodium caseinate and whey. Strangely enough, birth control pills, headache tablets and some drugs and supplements also contain lactose. By themselves they are unlikely to have a major effect but if your food is bad, it all adds up.

If you are lactose intolerant, it is far more serious that just cramps, bloating and flatulence. If the colon is constantly deluged by fermenting lactose it can leave the digestive system permanently weakened with harmful bacterial overgrowth and weak immunity. If you are an Indian, take it for granted that you have some level of intolerance. Sometimes the small intestine stops making lactase after a short-term illness such as stomach flu or as part of a lifelong disease such as cystic fibrosis. Or the small intestine sometimes stops making lactase after a surgery to remove a part of the small intestine. In rare cases, newborns are lactose-intolerant – this is serious because diarrhoea causes dehydration. Some premature babies have temporary lactose intolerance because they are not yet able to make lactase. Lactose intolerance increases as you get older.

You need to check out what harm you are doing to yourself. The best way to check this is to avoid eating milk and dairy products to see if your symptoms go away. If they do, then you can try adding small amounts of milk products to see if your symptoms come back.

Possible measures

There are two tests that doctors suggest: the Hydrogen Test Breath and Lactose tolerance tests. Before the test, you need to avoid certain foods, medicines and cigarettes. On the day of the test, you will drink a liquid that contains lactose and then breathe into a machine several times over a couple of hours. If the hydrogen levels in your breath are high, you may have lactose intolerance.

Lactose tolerance test measures your blood sugar after you eat or drink lactose. The night before the test, post midnight you should not eat or drink anything. On the day of your test, you will drink a liquid that contains lactose, which may cause gas or pain in your belly. Then your blood will be tested every 30 minutes for 2 hours. If your blood sugar levels do not rise, you may be lactose-intolerant. You may also be asked to bring in a sample of your faeces. The faeces of a person who has lactose intolerance is usually loose or watery and foamy.

There is no cure for lactose intolerance. But you can treat your symptoms by replacing milk products; with soy milk/cheese. If you are worried about getting enough calcium, you can easily get it from all greens, bhindi, broccoli, saag, almonds, and all soyas. You can use non-dairy creamers in your coffee. If you cannot bear the thought of life without milk, ice cream, cheese and pizzas you can take lactase supplements of which the best known is Lactaid 9000 Fc. You need to take these pills just before you consume lactose-heavy or lactose-based food. The capsules start at 1000 FC for those with slight insensitivity. But pills always have their own fallout.


Published Date: May 16, 2016 03:55 pm | Updated Date: May 16, 2016 04:11 pm


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