{"id":10921,"date":"2025-11-19T12:27:48","date_gmt":"2025-11-19T10:27:48","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=10921"},"modified":"2026-04-20T18:53:31","modified_gmt":"2026-04-20T15:53:31","slug":"a-lactose-intolerance-test-is-a-clear-indication-that-the-body-is-digesting-milk","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/a-lactose-intolerance-test-is-a-clear-indication-that-the-body-is-digesting-milk\/","title":{"rendered":"Lactose intolerance test: how to understand if the body digests milk"},"content":{"rendered":"<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;10921&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;320&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (320 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;\u0422\u0435\u0441\u0442 \u043d\u0430 \u043b\u0430\u043a\u0442\u043e\u0437\u043d\u0443 \u043d\u0435\u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0438\u043c\u0456\u0441\u0442\u044c: \u044f\u043a \u0437\u0440\u043e\u0437\u0443\u043c\u0456\u0442\u0438, \u0447\u0438 \u043e\u0440\u0433\u0430\u043d\u0456\u0437\u043c \u043f\u0435\u0440\u0435\u0442\u0440\u0430\u0432\u043b\u044e\u0454 \u043c\u043e\u043b\u043e\u043a\u043e&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (320 votes)    <\/div>\n    <\/div>\n<p data-start=\"557\" data-end=\"778\">Lactose intolerance is a condition in which the body cannot properly digest lactose, the sugar in milk. This can cause bloating, abdominal discomfort, gas, or loose stools after consuming milk or ice cream.<\/p>\n<p data-start=\"780\" data-end=\"1069\">Many people avoid dairy for years without knowing the exact cause of their discomfort. That&#039;s why testing for lactose intolerance is important \u2014 it helps distinguish a true enzyme deficiency from a food allergy, irritable bowel syndrome, or a reaction to other foods.<\/p>\n<h2 data-start=\"1071\" data-end=\"1110\">Why does lactose intolerance occur?<\/h2>\n<p data-start=\"1112\" data-end=\"1245\">Lactose is broken down by the enzyme lactase. If there is not enough of the enzyme, the lactose is not digested and begins to ferment in the large intestine.<\/p>\n<p data-start=\"1247\" data-end=\"1273\">The reasons may be different:<\/p>\n<p data-start=\"1275\" data-end=\"1513\">\u2022 genetic characteristics (the body naturally produces less lactase)<br data-start=\"1341\" data-end=\"1344\" \/>\u2022 age-related decrease in the enzyme<br data-start=\"1370\" data-end=\"1373\" \/>\u2022 foodborne infections or intestinal inflammation<br data-start=\"1415\" data-end=\"1418\" \/>\u2022 intolerance after acute illnesses<br data-start=\"1461\" data-end=\"1464\" \/>\u2022 consequences of celiac disease or malabsorption syndromes<\/p>\n<p data-start=\"1515\" data-end=\"1607\">Intolerance is rare in young children, but the prevalence increases with age.<\/p>\n<h2 data-start=\"1609\" data-end=\"1648\">Main symptoms to watch out for<\/h2>\n<p data-start=\"1650\" data-end=\"1722\">Not all symptoms occur at the same time, but a typical set looks like this:<\/p>\n<p data-start=\"1724\" data-end=\"1955\">\u2022 bloating 30\u2013120 minutes after milk<br data-start=\"1772\" data-end=\"1775\" \/>\u2022 bubbling, gases<br data-start=\"1791\" data-end=\"1794\" \/>\u2022 cramps or aching pain<br data-start=\"1818\" data-end=\"1821\" \/>\u2022 diarrhea or very loose stools<br data-start=\"1853\" data-end=\"1856\" \/>\u2022 nausea after dairy products<br data-start=\"1889\" data-end=\"1892\" \/>\u2022 an unpleasant feeling in the stomach after ice cream, milk, cream<\/p>\n<p data-start=\"1957\" data-end=\"2096\">Many people find relief by eliminating milk itself, but can tolerate yogurt or hard cheeses\u2014an important diagnostic clue.<\/p>\n<h2 data-start=\"2098\" data-end=\"2118\"><img decoding=\"async\" class=\"alignnone size-full wp-image-10923\" src=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom.jpg\" alt=\"the patient undergoes a lactose breath test\" width=\"1200\" height=\"822\" srcset=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom.jpg 1200w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom-150x103.jpg 150w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom-600x411.jpg 600w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom-300x206.jpg 300w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom-1024x701.jpg 1024w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/11\/doktor-srednego-kadra-razgovarivaet-s-pacientom-768x526.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/h2>\n<h2 data-start=\"2098\" data-end=\"2118\">What tests exist?<\/h2>\n<p data-start=\"2120\" data-end=\"2202\">Testing can be simple, non-invasive, or genetic, depending on the situation.<\/p>\n<h3 data-start=\"2204\" data-end=\"2236\">1. Hydrogen breath test<\/h3>\n<p data-start=\"2237\" data-end=\"2394\">One of the most reliable. After taking lactose, the patient exhales into a special device that measures hydrogen levels. If the lactose is not broken down, the hydrogen levels increase.<\/p>\n<p data-start=\"2396\" data-end=\"2447\">Advantages: non-invasive, suitable for adults and children.<\/p>\n<h3 data-start=\"2449\" data-end=\"2498\">2. Blood test after lactose loading<\/h3>\n<p data-start=\"2499\" data-end=\"2594\">The glucose level is measured after taking lactose. If the glucose does not increase, the enzyme is not enough.<\/p>\n<p data-start=\"2596\" data-end=\"2633\">Pros: fast. Cons: less sensitive.<\/p>\n<h3 data-start=\"2635\" data-end=\"2659\">3. Genetic test<\/h3>\n<p data-start=\"2660\" data-end=\"2760\">Examines gene variants responsible for lactase production. Shows whether there is a hereditary predisposition.<\/p>\n<p data-start=\"2762\" data-end=\"2850\">It is well suited when symptoms are vague or you want to get an answer &quot;once and for all&quot;.<\/p>\n<h3 data-start=\"2852\" data-end=\"2884\">4. Stool test (for toddlers)<\/h3>\n<p data-start=\"2885\" data-end=\"2983\">Detects organic acids, a product of lactose fermentation. Most often used in young children.<\/p>\n<h2 data-start=\"2985\" data-end=\"3014\">Table: which test to choose<\/h2>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3016\" data-end=\"3320\">\n<thead data-start=\"3016\" data-end=\"3061\">\n<tr data-start=\"3016\" data-end=\"3061\">\n<th data-start=\"3016\" data-end=\"3022\" data-col-size=\"sm\">Method<\/th>\n<th data-start=\"3022\" data-end=\"3033\" data-col-size=\"sm\">For whom<\/th>\n<th data-start=\"3033\" data-end=\"3061\" data-col-size=\"sm\">Best suited when<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3080\" data-end=\"3320\">\n<tr data-start=\"3080\" data-end=\"3143\">\n<td data-start=\"3080\" data-end=\"3099\" data-col-size=\"sm\">Hydrogen breath<\/td>\n<td data-col-size=\"sm\" data-start=\"3099\" data-end=\"3115\">adults, children<\/td>\n<td data-col-size=\"sm\" data-start=\"3115\" data-end=\"3143\">need an exact answer<\/td>\n<\/tr>\n<tr data-start=\"3144\" data-end=\"3208\">\n<td data-start=\"3144\" data-end=\"3163\" data-col-size=\"sm\">Blood after lactose<\/td>\n<td data-col-size=\"sm\" data-start=\"3163\" data-end=\"3173\">adults<\/td>\n<td data-col-size=\"sm\" data-start=\"3173\" data-end=\"3208\">there are restrictions on the breath test<\/td>\n<\/tr>\n<tr data-start=\"3209\" data-end=\"3265\">\n<td data-start=\"3209\" data-end=\"3220\" data-col-size=\"sm\"><a href=\"https:\/\/medilab.km.ua\/en\/analysis\/diagnostics-of-gastrointestinal-diseases\/detection-of-lactose-deficiency-genetics-of-lactose-metabolism-real-time-pcr\/\">Genetic<\/a><\/td>\n<td data-col-size=\"sm\" data-start=\"3220\" data-end=\"3226\">all<\/td>\n<td data-col-size=\"sm\" data-start=\"3226\" data-end=\"3265\">suspicion of hereditary intolerance<\/td>\n<\/tr>\n<tr data-start=\"3266\" data-end=\"3320\">\n<td data-start=\"3266\" data-end=\"3276\" data-col-size=\"sm\"><a href=\"https:\/\/medilab.km.ua\/en\/analysis\/diagnostics-of-gastrointestinal-diseases\/detection-of-lactose-deficiency-benedict-39-s-test-benedict-39-s-test\/\">Stool test<\/a><\/td>\n<td data-col-size=\"sm\" data-start=\"3276\" data-end=\"3294\">children under 3 years old<\/td>\n<td data-col-size=\"sm\" data-start=\"3294\" data-end=\"3320\">other methods are not available<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h2 data-start=\"3322\" data-end=\"3350\">When to take the test<\/h2>\n<p data-start=\"3352\" data-end=\"3394\">A doctor may recommend testing if:<\/p>\n<p data-start=\"3396\" data-end=\"3712\">\u2022 bloating or diarrhea regularly occurs after milk<br data-start=\"3446\" data-end=\"3449\" \/>\u2022 there is prolonged abdominal discomfort for no apparent reason<br data-start=\"3503\" data-end=\"3506\" \/>\u2022 diagnosed with irritable bowel syndrome, but symptoms worsen after eating dairy products<br data-start=\"3608\" data-end=\"3611\" \/>\u2022 there is a suspicion of an enzyme deficiency in the child<br data-start=\"3653\" data-end=\"3656\" \/>\u2022 have had an intestinal infection and the symptoms have not disappeared<\/p>\n<p data-start=\"3714\" data-end=\"3792\">The check will help you avoid self-imposed strict diets and improper restrictions.<\/p>\n<h2 data-start=\"3794\" data-end=\"3822\">How to prepare for the test<\/h2>\n<p data-start=\"3824\" data-end=\"3862\">The preparation is quite simple, but important:<\/p>\n<p data-start=\"3864\" data-end=\"4104\">\u2022 come on an empty stomach (6\u201312 hours without food)<br data-start=\"3899\" data-end=\"3902\" \/>\u2022 do not drink alcohol during the day<br data-start=\"3931\" data-end=\"3934\" \/>\u2022 do not accept <a href=\"https:\/\/medilab.km.ua\/en\/probiotics-their-importance-for-health-i-have-seen-and-the-rules-of-reception\/\">probiotics<\/a> 3\u20135 days<br data-start=\"3967\" data-end=\"3970\" \/>\u2022 avoid physical exertion before the test<br data-start=\"4013\" data-end=\"4016\" \/>\u2022 do not smoke on the day of the examination<br data-start=\"4045\" data-end=\"4048\" \/>\u2022 do not eat cabbage, legumes, carbonated drinks for 24 hours<\/p>\n<p data-start=\"4106\" data-end=\"4158\">Proper preparation ensures accurate results.<\/p>\n<h2 data-start=\"4160\" data-end=\"4200\">What to do after diagnosis<\/h2>\n<p data-start=\"4202\" data-end=\"4261\">Once lactose intolerance is confirmed, the patient can:<\/p>\n<p data-start=\"4263\" data-end=\"4534\">\u2022 choose products with low lactose content<br data-start=\"4307\" data-end=\"4310\" \/>\u2022 use lactase enzyme (as recommended by a doctor)<br data-start=\"4369\" data-end=\"4372\" \/>\u2022 replace milk with lactose-free milk<br data-start=\"4404\" data-end=\"4407\" \/>\u2022 include fermented milk products in the diet, which are often well tolerated<br data-start=\"4478\" data-end=\"4481\" \/>\u2022 work with a dietitian if symptoms persist<\/p>\n<p data-start=\"4536\" data-end=\"4699\">Lactose intolerance does not mean that you need to completely eliminate dairy products - the main thing is to find the amount and form that suits your body.<\/p>\n<p data-start=\"4724\" data-end=\"5087\">The lactose intolerance test is simple, informative, and helps you understand whether your symptoms are related to milk. Correct diagnosis allows you to avoid unnecessary restrictions, choose a comfortable diet, and regain control over your well-being. The sooner you determine the cause of your discomfort, the sooner you can restore normal functioning of your digestive system.<\/p>","protected":false},"excerpt":{"rendered":"<p>Lactose intolerance is a condition in which the body cannot properly digest lactose, which is milk sugar. This is why after milk or ice cream<\/p>","protected":false},"author":627,"featured_media":10922,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0422\u0435\u0441\u0442 \u043d\u0430 \u043b\u0430\u043a\u0442\u043e\u0437\u043d\u0443 \u043d\u0435\u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0438\u043c\u0456\u0441\u0442\u044c: \u044f\u043a \u0432\u0438\u0437\u043d\u0430\u0447\u0438\u0442\u0438 \u0442\u0430 \u0449\u043e \u0440\u043e\u0431\u0438\u0442\u0438<\/title>\n<meta name=\"description\" content=\"\u0421\u0438\u043c\u043f\u0442\u043e\u043c\u0438 \u043b\u0430\u043a\u0442\u043e\u0437\u043d\u043e\u0457 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\u0440. \u2014 \u041f\u041b\u0420-\u0434\u0456\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0430 \u0456\u043d\u0444\u0435\u043a\u0446\u0456\u0439\u043d\u0438\u0445 \u0445\u0432\u043e\u0440\u043e\u0431, \u0406\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u0435\u043f\u0456\u0434\u0435\u043c\u0456\u043e\u043b\u043e\u0433\u0456\u0457 \u0456\u043c. \u041b.\u0412. \u0413\u0440\u043e\u043c\u0430\u0448\u0435\u0432\u0441\u044c\u043a\u043e\u0433\u043e \u2022 2010, 2015, 2021 \u0440\u0440. \u2014 \u043e\u0440\u0433\u0430\u043d\u0456\u0437\u0430\u0446\u0456\u044f \u0456 \u0443\u043f\u0440\u0430\u0432\u043b\u0456\u043d\u043d\u044f \u043e\u0445\u043e\u0440\u043e\u043d\u043e\u044e \u0437\u0434\u043e\u0440\u043e\u0432\u2019\u044f \u2022 2017 \u0440. \u2014 \u043a\u043b\u0456\u043d\u0456\u0447\u043d\u0430 \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u043d\u0430 \u0434\u0456\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0430, \u0423\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0430 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