Lactose intolerance is an inability to digest and absorb the sugar in dairy products. Signs and symptoms are gas, diarrhea, and bloating. Foods that contain lactose include breads, processed foods, margarine, cereals, and lunch meats. There are several tests to diagnose lactose intolerance.

Get information on breastfeeding and formula feeding benefits and disadvantages. Read about common breastfeeding problems and pumping tips, and learn about how certain foods in a mother's diet affect her nursing baby. Discover how to handle breast soreness and discomfort.

Read a comparison of formula feeding and breastfeeding benefits, and learn about homemade formulas and how to choose the healthiest infant formula for your baby.

How to treat bee and wasp stings, home remedies, swelling, infection, and more. Learn how to recognize an allergic reaction to a sting from a bumblebee, honey bee, hornet, or yellow jacket.

The 8 most common food allergies are to eggs, nuts, milk, peanuts, fish, shellfish, strawberries, and tomatoes. Symptoms and signs of a food allergy include nausea, vomiting, diarrhea, abdominal pain, itching, hives, eczema, asthma, lightheadedness, and anaphylaxis. A food allergy is diagnosed using skin tests, RAST, and ELISA tests. An Epipen may be necessary for severe food allergies.

Breasts, or mammary glands, are capable of producing milk in females. Abnormal enlargement of breasts in men is called gynecomastia. Both men and women can have breast cancer. Breast lumps, benign tumors, and breast inflammation are other conditions of the breast in women.

With all the temper tantrums, picky eating, and food throwing, you may wonder if your toddler is getting enough to eat. Get answers to your questions about toddler eating problems.

Get the facts on the different types of vegetarian and vegan diets, the benefits and disadvantages of each diet, and see the vegan and vegetarian food pyramid guides. Learn about vitamins and supplements and recipe resources.

Taking vitamins and calcium supplements can help you to meet your nutritional needs. Learn about vitamin deficiencies, drug interactions, food sources, health benefits, and overdose and absorption information.

Listeria monocytogenes is a type of bacteria that can cause food poisoning. Listeriosis symptoms and signs include diarrhea, nausea, and fever. Read about diagnosis, treatment, prevention, and infection during pregnancy.

Intestinal gas and painful bloating are common. Learn about what causes gas pain and how eliminating certain foods from your diet can help relieve symptoms.

Find out how the stool acidity test detects lactose intolerance in children and infants. Lactose intolerance can produce symptoms of diarrhea, gas, and abdominal pain. When your body fails to properly digest lactose, the result becomes an acidic stool. Learn more abut this test.

Indigestion (dyspepsia, upset stomach) can be caused by problems related to, or not related to the gastrointestinal tract. Signs and symptoms are upper abdominal pain, belching, nausea, vomiting, abdominal bloating, and abdominal distention. Treatment depends upon the cause.

The bacteria Brucella causes brucellosis, an infectious zoonotic disease in humans. Learn how to prevent brucellosis, and read about transmission, treatment, and symptoms.

Get information about newborn jaundice, the most common condition in babies that requires medical evaluation and treatment. Symptoms and signs include yellowing of the skin, mucous membranes, and the whites of the eyes. Learn about the causes, definition, symptoms, and treatment of jaundice in newborns.

Consumer information on eating right with Parkinsons disease: food and medication interactions, controlling nausea, dry mouth, maintaining your weight and the importance of proper nutrition on your health.

Learn about healthy eating during pregnancy, what foods to avoid, staying on a vegetarian diet, dealing with lactose intolerance, pregnancy food cravings, and foods to eat when you are not feeling well during pregnancy.

Breast lumps in women are common and can be either benign or cancerous. Learn about causes, diagnosis, treatment, and how to tell if a lump is cancerous.

Learn the essential elements of a healthy diet and proper nutrition for disease prevention.

Good oral health care in children is a precursor to better outcomes at later stages of life. Learn the common oral health issues in children, as well as tips to prevent these problems.

Nonceliac gluten sensitivity or intolerance may be a medical condition. Symptoms and signs of gluten sensitivity include abdominal pain, diarrhea, bloating, gas, and abdominal cramping. Inflammatory bowel diseases (Crohn's disease and ulcerative colitis) mimic gluten intolerance symptoms.

Read about colic symptoms in babies and treatment of incessant crying in newborns. Learn about potential causes, how long it lasts, and get tips on calming a colicky baby.

Diarrhea is watery, loose stools that occur more than three times in 1 day. Acute diarrhea lasts for about 2-3 days. Chronic diarrhea lasts for 3 weeks or more. Symptoms include abdominal pain, gas, bloating, and bloody stool. The treatment for diarrhea depends on the cause.

Learn about the pros and cons of the MyPlate icon and the revised dietary guidelines. Read about MyPlate vs. Food Pyramid.

Probiotics are live microorganisms that can treat and prevent some illnesses. Learn the benefits of probiotics, and read about side effects, types, and foods that contain the most probiotics. Find out how to take probiotics.

When do you stop breastfeeding? Weaning your baby, whether from breastfeeding or formula feeding, can be a challenging situation. Learn the signs of when to know it's time to wean your baby, such as wanting to breastfeed or drink formula often, doubling their birth weight, being interested in solid foods, and more.

Cystic acne is the most severe form of acne and is characterized by painful nodules on the face, back, chest, and neck. Read about treatment, medications, home remedies, and causes.

GERD (acid reflux) and GER in infants and children have common symptoms that include frequent or recurring vomiting, cough, crying with feeding, heartburn, gas, abdominal pain, colic, feeding problems, and recurrent pneumonia.

Learn more about insect sting allergies, including symptoms, risk factors, diagnosis, types of reactions, treatments, avoidance, management, and immunity. Stings from bees, yellow jackets, wasps, fire ants, and hornets may cause allergic reactions.

MERS (Middle East respiratory syndrome) infection can spread through respiratory secretions. Symptoms include fever, dry cough, and severe shortness of breath. Read about transmission, incubation period, and treatment of this coronavirus infection.

Fibrocystic breast condition is characterized by pain, tenderness, and/or discomfort in one or both breasts, often caused by changes in hormones (menstruation, menopause). Learn about causes and treatment.