How do the symptoms for lactose intolerance progress?

Symptoms of lactose intolerance include abdominal cramps, bloating, gas, diarrhea, abdominal distention, weight loss, malnutrition, slow growth, floating stools, foul-smelling stools, and nausea.

Symptoms range from mild to severe and begin about 30 minutes to 2 hours after eating or drinking foods containing lactose.

While there are tests for lactose intolerance, an easy way to determine if milk is causing the problem is by eliminating all milk products for a week. Use soy milk products to replace milk.

There is a difference between lactose intolerance and cow's milk intolerance. Though symptoms are similar, the two are not related. Being intolerant to cows milk is an allergic reaction. Lactose intolerance is caused by a lack of lactase, an enzyme that helps in digesting the lactose (sugar) in milk. **Someone with lactose intolerance won't be able to have ANY milk products, including goat's milk.

Primary lactase deficiency develops over time. After about age 2 the body begins to produce less lactase, THOUGH MOST PEOPLE WILL NOT NOTICE SYMPTOMS UNTIL THEY AER MUCH OLDER.

Certain ethnic and racial populations are more affected by lactose intolerant than others. The condition is least common among people of northern European descent.

Babies that are born prematurely (before the 3rd trimester) are also more likely to be lactose intolerant, because lactase levels do not increase until the third trimester of a woman’s pregnancy.

My niece and nephew are both lactose intolerant.

Yes, vomiting is a symptom. So is belly ache. People with lactose intolerance can also have a lot of problems with gas in its various forms.

Both of these kids have been lactose intolerant since birth. They're 6 and 11.

Their mother has eliminated cow's milk from their diets everywhere possible. That includes milk, yogurt, cheese, whipped cream.

Make sure she has an allergy test because both my father and sister had severe food allergies and did not realize it. Until they finally got tested they also found out they were sensitive to wheat gluten and other foods. Watch what she eats very closely and ask about crones disease that also is accompanied by stomach pains.

I think you start getting upset stomach and burping a lot afterward. It's a gradual thing. My dad started getting it around 60 I think.

You might check out this website...

http://en.wikipedia.org/wiki/Lactose_intolerant

There are different types and ages at which it can develop.

no and yes t o your first questions i think