61. Diseases And Conditions -- Discovery Health -- Lactose Intolerance lactose intolerance is a condition in which a person cannot digest enoughlactose, the sugar found in milk and milk products. http://health.discovery.com/diseasesandcond/encyclopedia/2712.html

lactose intolerance By John Wegmann, MD Lactose intolerance is a condition in which a person cannot digest enough lactose, the sugar found in milk and milk products. The individual has a deficiency of an enzyme known as lactase. What is going on in the body? People with lactose intolerance don't have enough lactase to break down the lactose they eat or drink. They are unable to break the lactose down into glucose, which is the form of sugar used by body cells. When lactase is missing from the intestine, the condition is called lactase deficiency. There are three types of lactase deficiency: congenital acquired temporary Congenital lactase deficiency is a rare disorder that appears to run in families. Infants begin to have symptoms of bloating and watery diarrhea shortly after starting on breast milk or formula feeding. Acquired lactase deficiency comes on gradually over time. It also seems to run in families. It affects certain ethnic groups more than others. The enzyme lactase is present in the baby's intestine from about the middle of pregnancy onward. The amount of lactase in the intestine begins to drop after weaning. By 5 to 7 years of age, a child's lactase activity is about 10% of what it was at birth. Temporary lactase deficiency sometimes follows gastroenteritis in children. When the child has diarrhea, his or her intestines are stripped of the enzyme lactase. The child then has trouble digesting lactose when he or she drinks milk products.

62. Tolerating Lactose Intolerance: Well&Good: 2003 Issue 4: UI Health Care Tolerating lactose intolerance. Milk is good for you, right? Not always. With carefuldiet planning, the effects of lactose intolerance can be minimized. http://www.uihealthcare.com/news/wellandgood/2003issue1/lactose.html

This issue home Publishers Back issues E-mail your questions and suggestions to WellandGood@uiowa.edu - UI Health Care's digital library Send comments and questions to staff@uihealthcare.com University of Iowa Tolerating lactose intolerance Milk is good for you, right? Not always. For nearly 50 million U.S. adults suffering from lactose intolerance, drinking milk or eating dairy products may result in bloating, cramps, diarrhea, and gas. But the story doesn't miserably end there. With careful diet planning, the effects of lactose intolerance can be minimized. "Lactose intolerance is your body's inability to digest lactose, the natural sugar found only in dairy products," says Warren Bishop, M.D., UI Health Care pediatric gastroenterologist. "It is caused by a shortage of the lactase enzyme that normally breaks down this sugar into simpler forms." Lactose intolerance is not the same as an allergy to milk. People with milk allergies have symptoms caused by milk proteins as opposed to milk sugar. Symptoms of milk allergy include respiratory problems, diarrhea, vomiting, and rashes. Because most mammals do not drink milk after weaning, they are programmed to lose the ability to digest lactose. This is true in many humans as well. However, Bishop says, adults of Northern European ancestry are more likely to digest milk well because of the importance dairy products played in survival in early Europe.

63. Nature Publishing Group doi10.1038/2625 October 1998 Volume 4 Number 10 pp 1131 1135 Peroral gene therapyof lactose intolerance using an adeno-associated virus vector Matthew J http://www.nature.com/cgi-taf/DynaPage.taf?file=/nm/journal/v4/n10/full/nm1098_1

64. Lactose Intolerance lactose intolerance or MILK ALLERGY? Some of the same symptoms canbe caused by other conditions. FAQ About lactose intolerance. http://www.milk.mb.ca/Nutritin/lactose.htm

LACTOSE INTOLERANCE or MILK ALLERGY? Here is an easy guide on how to tell the difference and still get the essential nutrition you need. Table of Contents First things first! Lactose Intolerance Milk Allergy FAQ about lactose intolerance ... FAQ about milk allergy Introduction First Things First This information has been designed to help you understand the difference between lactose intolerance and milk allergy, answer some of your questions, and provide you with dietary tips. For more complete information, speak to your doctor and/or consult a dietitian. But do keep in mind, Milk Products are an important part of a healthy, nutritious diet. Every effort should be made to include these foods every day! Lactose Intolerance Possible Symptoms: Stomach bloating Cramps Gas Diarrhea Who is Affected: Most common in adults from Africa, Asia, the Orient or Native North Americans. Less common in children. What is The Cause: Digestive system's inability to break down the milk sugar (lactose) in milk and milk products. How Long Will it Last: Primary lactose intolerance is permanent.

65. Grand Parents Again - Medical: Information - Lactose Intolerance Go To The information Lobby, lactose intolerance. Little by little we zeroed inon lactose intolerance. She was having trouble digesting dairy products. http://www.grandparentagain.com/medical/info_lactose.html

LACTOSE INTOLERANCE RAD Lactose Intolerance Learning Disabilities Autism Bellyaches aren't any fun. Sometimes 2 to 3 times a day my Angel would be at the School Nurse, always the same thing. This isn't a kid who eats a lot of sweets and candy so it never made any sense to me. I was making her school lunch, so I knew what she had to eat, yet something wasn't making sense. This kid has gorgeous blue eyes, was getting enough sleep and loves her vegetables. Yet, she had these circles under her eyes that were to say the least strange. Imagine overlaying pink and blue. After a few visits to the friendly pediatrician it was war. He took fats, dairy, salt - it seemed everything out of her diet. At first I panicked, what do I feed her. Naturally, I was positive she would starve to death. Little by little we zeroed in on lactose intolerance. She was having trouble digesting dairy products. The milk I had her drinking and cheese she loved was causing the pain. I feel like a pioneer! Again, not much information or availability of products. Common sense has to kick in, she and I learned how to read cereal boxes and prepared food mixes looking for key words such as lactose and whey. It was a done deal when that became her job, she would go choose her cereal, bring it back and say this one is good for me. Lactose free milk was harder to find then, now it's all over the place.

66. Gastrointestinal.net: Dysfunction And Disease Of The Gastrointestinal System Information on the dysfunction and diseases of the gastrointestinal tract.Category Health Medicine Medical Specialties Gastroenterology...... lactose intolerance Lactose is a sugar present in dairy products that requires anenzyme called lactase to break it up so it can be absorbed and used by the http://www.gastrointestinal.net/

Healthcare professionals and scientists have carefully prepared this ALtruis Biomedical Network-affiliated site, intended for informational purposes only Partners: Diarrhea Constipation Hemorroids Gallstones ... Cancers Nausea and Vomiting Nausea and vomiting can occur in association with infectious and noninfectious GI disorders, pregnancy and motion sickness. They can also follow the administration of many drugs including cancer chemotherapy antibiotics , narcotic pain medications and nonsteroidal anti-inflammatory drugs such as ibuprofen. There is a vomiting center in the brain that receives signals from multiple sites and once stimulated causes the natural motility of the stomach to be reduced so that gastric reflux occurs. Vomiting results when the stomach relaxes, the passage from the stomach to the intestine constricts and the contractions of surrounding muscles causes expulsion of the gastric contents. Several chemicals in the body are involved in the transmission of information passing into and out of the vomiting center. Drugs used to block these chemicals are used to treat nausea and vomiting. The chemicals being blocked are involved in many other bodily functions, so many drugs used to treat nausea and vomiting have other uses. For example, drugs categorized as major tranquilizers, antihistamines , antianxiety agents, and corticosteroids chemotherapy . Due to the ability of cause physical and psychological dependence and hallucinations, it is reserved for patients who have not responded to other forms of treatment.

67. Chreese Dot Com lactose intolerance. lactose intolerance is the inability to digestsignificant amounts of lactose, the predominant sugar of milk. http://www.chreese.com/special_lactose.php

Celiac/Gluten-Free Lactose Intolerance Kosher Other LACTOSE INTOLERANCE Lactose intolerance is the inability to digest significant amounts of lactose, the predominant sugar of milk. This inability results from a shortage of the enzyme lactase, which is normally produced by the cells that line the small intestine. Lactase breaks down milk sugar into simpler forms that can then be absorbed into the bloodstream. When there is not enough lactase to digest the amount of lactose consumed, the results, although not usually dangerous, may be very distressing. While not all persons deficient in lactase have symptoms, those who do are considered to be lactose intolerant. Common symptoms include nausea, cramps, bloating, gas, and diarrhea, which begin about 30 minutes to 2 hours after eating or drinking foods containing lactose. The severity of symptoms varies depending on the amount of lactose each individual can tolerate. Some causes of lactose intolerance are well known. For instance, certain digestive diseases and injuries to the small intestine can reduce the amount of enzymes produced. In rare cases, children are born without the ability to produce lactase. For most people, though, lactase deficiency is a condition that develops naturally over time. After about the age of 2 years, the body begins to produce less lactase. However, many people may not experience symptoms until they are much older. Between 30 and 50 million Americans are lactose intolerant. Certain ethnic and racial populations are more widely affected than others. As many as 75 percent of all African Americans and American Indians and 90 percent of Asian Americans are lactose intolerant. The condition is least common among persons of northern European descent.

68. Lactose-free Milk - DrGreene.com - Caring For The Next Generation digest the sugar in milk. As a result, in healthy fullterm infantslactose intolerance is extremely rare. It is more common in http://www.drgreene.com/21_836.html

QUICK SEARCH A - Z Guide Allergies Allergy Care Guide Asthma Care Guide Bedwetting Breastfeeding Childhood Obesity Diabetes Care Guide Ear Infections Genetics Immunizations Infectious Diseases Parenting Potty Training Rashes Safety Sleep DrGreene.com Topic Centers Mission Reviews Awards Readers Comments Press Room Partners and Supporters Contact Us Pediatric Information A-Z Guide Allergy Care Guide Asthma Care Guide Diabetes Care Guide DrGreene´s Chats FAQ Fast Facts Feature Articles Guidelines Pediatric Updates Special Feature Top Tips Community Activty Guide Advanced Search Community Central Chat Chat Schedule Cute Faces Family Friendly Recipes Parent-to-Parent Resources The DrGreene Team Newsletter Prenatal Newborn Infants Toddlers Pre-Schoolers School Age Teens / Adolescents Multimedia Library Children's Health Fertility Lactose-free Milk I'm strongly committed to breast feeding , but I'm not sure how digestible my breast milk is because lately my baby has been colicky . One book I read said that my breast milk would be more digestible if I cut dairy products out of my diet. I really love dairy, so I'm wondering if there's a way around this. Would it be OK for me to drink lactose-free milk instead of regular milk? What about taking a pill to help me break down the lactose in yogurt and cheese? Committed but confused on the east coast I'm glad about your decision to breast feed your baby. Although breast feeding can pose challenges (and joys), it is still true that mother's milk is the perfect food for babies. Milk is, in fact, the basic food for all mammals. Why then do people often experience difficulty tolerating milk?

69. Healthy Trinity Probiotics, The Beneficial Bacteria From Natren lactose intolerance is the body’s inability to digest lactose—asugar found in milk. Those with this condition are missing the http://www.natren.com/pages/atozlactoseint.html

70. Patient Brochures: Lactose Intolerance lactose intolerance. Even though lactose intolerance is a widespread problem, it neednot pose a serious threat to good health. What Causes lactose intolerance? http://www.gastro.org/public/brochures/lactose.html

Search website "70 million Americans deal with digestive disorders only 1 magazine does. Includes information on heartburn, lactose intolerance, IBD, IBS and other digestive disorders." Lactose Intolerance What Causes Lactose Intolerance? What Diagnostic Tests are Used to Detect Lactose Intolerance? What Treatments are Available to Control Symptoms? Additional Reading Even though lactose intolerance is a widespread problem, it need not pose a serious threat to good health. People who have trouble digesting lactose can learn, by testing themselves, which dairy products and other foods they can eat without discomfort and which ones they should avoid. Many will be able to enjoy milk, ice cream, and other such products if they take them in small amounts or eat other kinds of food at the same time. Others can use lactase liquid or tablets to help digest the lactose. Even older women and children who must avoid milk and foods made with milk can meet most of their special dietary needs by eating greens, fish, and other calcium-rich foods that are free of lactose. A carefully chosen diet (with calcium supplements if the doctor recommends them) is the key to reducing symptoms and protecting future health. Lactose intolerance is the inability to digest significant amounts of lactose, which is the predominant sugar of milk. Close to 50 million American adults are lactose intolerant. Certain ethnic and racial populations are more widely affected than others. As many as 75 percent of all African-American, Jewish, Native American, and Mexican-American adults, and 90 percent of Asian-American adults are lactose intolerant. The condition is least common among people of northern European descent.

71. Lactose Intolerance . Lactose...... lactose intolerance. Definition. lactose intolerance refers to the inabilityof the body to digest lactose. http://www.healthatoz.com/healthatoz/Atoz/ency/lactose_intolerance.html

Encyclopedia Index L Home Encyclopedia Encyclopedia Index L Lactose intolerance Definition Lactose intolerance refers to the inability of the body to digest lactose. Description Lactose is the form of sugar present in milk. The enzyme lactase, which is normally produced by cells lining the small intestine, breaks down lactose into substances that can be absorbed into the bloodstream. When dairy products are ingested, the lactose reaches the digestive system and is broken down by lactase into the simpler sugars glucose and galactose. The liver changes the galactose into glucose, which then enters the bloodstream and raises the blood glucose level. Lactose intolerance occurs when, due to a deficiency of lactase, lactose is not completely broken down and the glucose level does not rise. While not usually dangerous, lactose intolerance can cause severe discomfort. From 30 to 50 million Americans suffer from the symptoms of lactose intolerance, but not everyone who is deficient in lactase experiences symptoms. Experts believe that 75% of the adult population worldwide does not produce enough lactase and is at risk for some or all of the symptoms of lactose intolerance. Causes and symptoms Lactose intolerance can be caused by some diseases of the digestive system and by injuries to the small intestine that result in a decreased production of lactase. While rare, some children are also born unable to produce the enzyme. For many, however, lactase deficiency develops naturally because, after about two years of age, the body produces less lactase.

72. Welcome To QuinTron Instrument Company: Lactose Intolerance, Irritable Bowel Syn Manufacturer of tracegas analyzers measuring hydrogen, methane and carbon dioxide.Category Science Instruments and Supplies Laboratory Equipment......QuinTron Instrument Company is a world leader in lactose intoleranceand Breath Hydrogen Testing. http://www.quintron-usa.com/

For the 4 Billion People Who Are Lactose Malabsorbers In a study of 242 patients referred to a Gastroenterologist for nonspecific distress, 68% of the patients were found to be lactose malabsorbers. Surprisingly, two thirds of the malabsorbers denied any association between symptoms and the ingestion of milk products. Bacterial Overgrowth Breath Test May Lead to Successful Treatment of IBS. A study published in The American Journal of Gastroenterology in November of 2000 by Dr. Mark Pimental, et al., concluded that small intestinal bacterial overgrowth is associated with irritable bowel syndrome, and that eradication of the overgrowth eliminates IBS by study criteria in 48% of subjects. QuinTron Instrument Company is pleased to announce the recent ISO 9001 and ISO 13485 certification for Design and Manufacture of Breath Testing Equipment Used as an Aid for In Vitro Diagnosis.

73. LACTOSE.UCL lactose intolerance Gene Identified. Library Each of them showed thegenetic mutation for lactose intolerance in their DNA. That http://www.newswise.com/articles/2002/1/LACTOSE.UCL.html

home scinews mednews biznews ... contact University of California, Los Angeles Health Sciences 14-Jan-02 Lactose Intolerance Gene Identified Library: MED Keywords: LACTOSE INTOLERANCE DAIRY FINNISH GENETIC MUTATION LOS ANGELES CA Description: UCLA and Finnish researchers have identified a genetic mutation for lactose intolerance, a painful digestive condition that afflicts some 30 million to 50 million North Americans, 75 percent of African Americans and 90 percent of Asian Americans. (Nature Genetics, 14-Jan-2002) Elaine Schmidt (e laines@support.ucla.edu Embargoed until: Jan. 13 at 2 p.m. ET UCLA and Finnish Scientists Identify Genetic Mutation That Causes Lactose Intolerance UCLA and Finnish researchers have identified a genetic mutation for lactose intolerance, a painful digestive condition that afflicts some 30 million to 50 million North Americans, 75 percent of African Americans and 90 percent of Asian Americans. The findings are reported in the Jan. 14 issue of Nature Genetics. Dr. Leena Peltonen, UCLA's Gordon and Virginia MacDonald Distinguished Chair in Human Genetics, and her associates at the UCLA School of Medicine, collaborated with colleagues at Finland's National Public Health Institute to identify a DNA variant outside of the gene associated with lactose intolerance. Lactose intolerance occurs in children after weaning, when the cells that line the small intestine decrease their production of an enzyme called lactase-phlorizin. For years, scientists' analyses of the human gene that encodes this enzyme revealed no mutation associated with the disorder. As a result, Peltonen's team looked for a DNA variant outside of the encoding gene.

74. Great Smokies Diagnostic Laboratory lactose intolerance Breath Test Application Guide FAQ Sample Report Order This simple, noninvasive test detects lactose intolerance http://www.gsdl.com/assessments/lactose_intolerance/

GSDL Resources News Assessments ... Clinician Support Search GSDL Find Assessments: by system Gastrointestinal Immunology Nutritional Endocrinology Metabolic by condition ADD AIDS Alzheimers Autism Cardiovascular Cystic Fibrosis Depression Fatigue Fibromyalgia Headache Hyperactivity IBD Indigestion Lactose Intolerance Male Infertility Memory Multiple Sclerosis Osteoarthritis Osteoporosis PMS Rheumatoid Arthritis Sexual Dysfunction Skin Disorder Sleep Disorder Type 2 Diabetes Weight by test focus Adrenocortex Allergy Amino Acids Bacterial Overgrowth Bone Resorption Cardiovascular CDSA Cellular Energy Detoxification Dysglycemia Elemental Estrogen Metabolism Fatty Acids Female Hormones Glucose/Insulin Helicobacter Pylori IGF-1 Intestinal Permeability Lactose Intolerance Male Hormones Melatonin Menopause Metabolic Analysis Oxidative Stress Parasites Thyroid Toxic Clearance Toxic Exposure Vaginosis Women's Hormonal Lactose Intolerance Breath Test Application Guide FAQ Sample Report Order This simple, non-invasive test detects lactose intolerance, a condition affecting more than 50 million Americans. Proper detection enables effective treatment of lactose maldigestion and malabsorption, to help alleviate chronic symptoms of bloating, gas, diarrhea, and abdominal pain. Lactose intolerance is one of the most common gastrointestinal disorders, affecting hundreds of millions of people worldwide. This condition arises from an enzyme (lactase) deficiency in the gut. Without adequate amounts of lactase, the digestive system is unable to properly break down and absorb lactose, the main sugar in milk and dairy products. When this happens, lactose is fermented by bacteria in the colon, causing the release of hydrogen and methane gases.

75. HON Allergy Glossary Lactase (www.botany.uwc.ac.za). lactose intolerance. Lactose Tolerance Test. Lactose Maldigestionlactose intolerance, Lactase Deficiency, Lactose Allergy, Milk sickness. http://www.hon.ch/Library/Theme/Allergy/Glossary/lactase.html

Allergy : A B C ... W X Y Z Pollen Calendar More on this topic Relevant sites from HON's MedHunt: Lactase Lactose Multimedia from HONselect: Lactose image (www.botany.uwc.ac.za) Lactose Intolerance Lactose Tolerance Test External survey "Questionnaire on mood" conducted by the "IMSP- Faculty of Medicine - University of Geneva" Lactose A complex sugar found in milk and milk products (also the principal sugar found in these products). Lactose must be broken down by lactase into the simple sugars galactose and glucose in order to be absorbed. Lactase An intestinal enzyme that is needed to digest lactose. The lack of lactase results in what is called Lactose Maldigestion Lactose Maldigestion Lactose Intolerance, Lactase Deficiency, Lactose Allergy, Milk sickness Intolerance to milk and milk products due to a lactase deficiency. The digestive system does not produce enough of this enzyme to break down the lactose into simpler sugars (glucose and galactose). Thus, the lactose sugar ferments in the small intestine producing gas, bloating , cramps, abdominal cramping and diarrhea after drinking milk or eating dairy products. This problem is present in over 80 percent of nonwhite adults. Lactose Maldigestion can be diagnosed by certain

76. HealthlinkUSA Lactose Intolerance Links part of the treatment process. FindWhat. Click here for page 1 oflactose intolerance information from the HealthlinkUSA directory. http://www.healthlinkusa.com/177ent.htm

77. University Of Iowa: Student Health / Health Iowa: Nutrition Student Health, You are here Home lactose intolerance, HealthQuestions -. lactose intolerance. Definition You don't http://www.uiowa.edu/~shs/nutrition5.htm

You are here Home - Health Questions - Alcohol Cold/Flu Fitness General Illness Medicine Mental Health Nutrition Sexual Health Stress Student Health Information: Frequently Asked Questions Insurance Services Staff ... Exposure Reporting LACTOSE INTOLERANCE Definition: You don't have enough of the enzyme lactase that digests lactose, the main sugar in milk. 10 TIPS FOR TOLERANCE: 1. Start Small: Try small, frequent portions of milk and milk products throughout the day. This allows whatever lactase is present to do its job of digesting the lactose before it starts causing problems. 2. Pair the Dairy: Drink milk with other foods, not on an empty stomach. Solid foods slow digestion allowing the body more time to digest the lactose and helping prevent symptoms. 3. Reduce It: Look for lactose-reducing or lactose-free milk in the dairy case. It has all the nutrients of regular milk. Or buy lactase enzyme drops at the pharmacy. Added to milk, they break down the lactose so it is easier to digest.

78. Lactose Intolerance lactose intolerance. Adults with lactose intolerance cannot break down lactose(milk sugar) into glucose and galactose for absorption by the intestine. http://www.people.virginia.edu/~rjh9u/lacintol.html

Lactose Intolerance Lactose intolerance, inherited as an autosomal recessive trait, manifests as an inability to excrete lactase into the intestinal lumen at some time after weaning. Adults with lactose intolerance cannot break down lactose (milk sugar) into glucose and galactose for absorption by the intestine. The lactose can be taken up by intestinal bacteria which produce carbon dioxide gas from oxidative phosphorylation. This produces excessive flatulence in the human. In addition, the excess lactose in the gut creates an osmotic imbalance which results in less water being reabsorbed by the intestinal lining and this results in a watery stool or diarrhea. The combination of flatulence and watery stool is sometimes termed "explosive diarrhea". Not all individuals who are lactose intolerant experience a serious reaction to milk or milk products. Indeed, one would expect to find multiple alleles at this locus each with different characteristics. Research at the VA Medical Center in Minneapolis showed that: Of 49 people who thought they were lactose intolerant, only 34 were confirmed.

79. Lactose Intolerance Frequency Frequency and Distribution of lactose intolerance. Human Group, IndividualsExamined, Percent Intolerant, Allele Frequency. Swedish, 2%, 0.14. http://www.people.virginia.edu/~rjh9u/lacdata.html

Frequency and Distribution of Lactose Intolerance Human Group Individuals Examined Percent Intolerant Allele Frequency Swedish Europeans in Australia Swiss American Caucasians Finns African Tussi African Fulani American Blacks Australian Aborigines African Bantu Chinese Thais American Indians Data obtained (in part) from "Lactose and Lactase", Scientific American , October, 1972, by Norman Kretchmer The National Institute of Diabetes and Digestive and Kidney Diseases ( NIDDK ) of the NIH estimates that between 30 and 50 million Americans are lactose intolerant. This includes an estimate of lactose intolerance affecting 75% of African-Americans and 90% of Asian and Native Americans. By the way, the US Census estimates the US population at 261,638,000 as of January 1, 1996 and is made up of 72% white; 13% African-American; 11% Hispanic; 4% Asian and Pacific Island; and 1% Native American, Eskimo, and Aleutian. This document maintained by Robert J. Huskey Last updated on December 17, 1998.

80. InteliHealth: Lactose Intolerance referenced in an AZ format. lactose intolerance. Health A to Z, Reviewedby the Faculty of Harvard Medical School lactose intolerance http://www.intelihealth.com/IH/ihtIH/WSIHW000/9339/10239.html

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