Lactose Intolerance Treatment & Management
- Author: Praveen K Roy, MD, AGAF; Chief Editor: Julian Katz, MD more...
Medical Care
Dietary adjustment is the primary form of therapy for patients with lactose intolerance.[15, 16] Advise patients to reduce or restrict products containing lactose. Prehydrolyzed milk (LACTAID) is available and is effective. Yogurt and fermented products, such as cheeses, are better tolerated than regular milk. Soy-based milk or food products are well tolerated.
Commercially available lactase enzyme preparations (eg, LACTAID, Lactrase) are effective in reducing symptoms; however, they may not be effective in some patients, partially due to insufficient dosing.
Supplemental calcium should also be recommended.[17]
In secondary lactase deficiency, treatment is directed at the underlying cause.[18]
Consultations
- Gastroenterologist
- Nutritionist
Diet
- Avoid or reduce intake of lactose-containing foods.
- Most patients who are lactose intolerant can ingest as much as 240 mL of milk without an exacerbation of their symptoms.[19]
- Certain medications and foods contain hidden lactose, such as breads, margarine, salad dressings, and candies.
Vesa TH, Marteau P, Korpela R. Lactose intolerance. J Am Coll Nutr. Apr 2000;19(2 Suppl):165S-175S. [Medline].
Newcomer AD, McGill DB, Thomas PJ, et al. Tolerance to lactose among lactase-deficient American Indians. Gastroenterology. Jan 1978;74(1):44-6. [Medline].
Di Stefano M, Miceli E, Mazzocchi S, et al. Visceral hypersensitivity and intolerance symptoms in lactose malabsorption. Neurogastroenterol Motil. Nov 2007;19(11):887-95. [Medline].
Zhong Y, Priebe MG, Vonk RJ, et al. The role of colonic microbiota in lactose intolerance. Dig Dis Sci. Jan 2004;49(1):78-83. [Medline].
Auricchio S, Rubino A, Landholt M. Isolated lactase deficiency in the adult. Lancet. 1963;2:324-6.
Kern F Jr, Struthers JE Jr. Intestinal lactase deficiency and lactose intolerance in adults. JAMA. Mar 14 1966;195(11):927-30. [Medline].
Bayless TM, Rothfeld B, Massa C, et al. Lactose and milk intolerance: clinical implications. N Engl J Med. May 29 1975;292(22):1156-9. [Medline].
Mishkin S. Dairy sensitivity, lactose malabsorption, and elimination diets in inflammatory bowel disease. Am J Clin Nutr. Feb 1997;65(2):564-7. [Medline].
Upton J, Mackay R, George P. A simple gene test for lactose intolerance/adult hypolactasia. N Z Med J. Nov 9 2007;120(1265):U2817. [Medline].
Beyerlein L, Pohl D, Delco F, et al. Correlation between symptoms developed after the oral ingestion of 50 g lactose and results of hydrogen breath testing for lactose intolerance. Aliment Pharmacol Ther. Apr 2008;27(8):659-65. [Medline].
Hermans MM, Brummer RJ, Ruijgers AM, et al. The relationship between lactose tolerance test results and symptoms of lactose intolerance. Am J Gastroenterol. Jun 1997;92(6):981-4. [Medline].
Arola H. Diagnosis of hypolactasia and lactose malabsorption. Scand J Gastroenterol Suppl. 1994;202:26-35. [Medline].
Carroccio A, Montalto G, Cavera G, et al. Lactose intolerance and self-reported milk intolerance: relationship with lactose maldigestion and nutrient intake. Lactase Deficiency Study Group. J Am Coll Nutr. Dec 1998;17(6):631-6. [Medline].
Suarez FL, Savaiano DA, Levitt MD. A comparison of symptoms after the consumption of milk or lactose-hydrolyzed milk by people with self-reported severe lactose intolerance. N Engl J Med. Jul 6 1995;333(1):1-4. [Medline].
Patel YT, Minocha A. Lactose intolerance: diagnosis and management. Compr Ther. Winter 2000;26(4):246-50. [Medline].
Suarez FL, Savaiano DA, Levitt MD. Review article: the treatment of lactose intolerance. Aliment Pharmacol Ther. Dec 1995;9(6):589-97. [Medline].
Kudlacek S, Freudenthaler O, Weissboeck H, et al. Lactose intolerance: a risk factor for reduced bone mineral density and vertebral fractures?. J Gastroenterol. 2002;37(12):1014-9. [Medline].
Vonk RJ, Priebe MG, Koetse HA, et al. Lactose intolerance: analysis of underlying factors. Eur J Clin Invest. Jan 2003;33(1):70-5. [Medline].
Suarez FL, Savaiano D, Arbisi P, et al. Tolerance to the daily ingestion of two cups of milk by individuals claiming lactose intolerance. Am J Clin Nutr. May 1997;65(5):1502-6. [Medline].
Di Stefano M, Veneto G, Malservisi S, et al. Lactose malabsorption and intolerance and peak bone mass. Gastroenterology. Jun 2002;122(7):1793-9. [Medline].
Järvinen RM, Loukaskorpi M, Uusitupa MI. Tolerance of symptomatic lactose malabsorbers to lactose in milk chocolate. Eur J Clin Nutr. May 2003;57(5):701-5. [Medline].
Beja-Pereira A, Luikart G, England PR, et al. Gene-culture coevolution between cattle milk protein genes and human lactase genes. Nat Genet. Dec 2003;35(4):311-3. [Medline].
Born P, Sekatcheva M, Rosch T, et al. Carbohydrate malabsorption in clinical routine: a prospective observational study. Hepatogastroenterology. Sep-Oct 2006;53(71):673-7. [Medline].
Lomer MC, Parkes GC, Sanderson JD. Review article: lactose intolerance in clinical practice--myths and realities. Aliment Pharmacol Ther. Jan 15 2008;27(2):93-103. [Medline].

