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Lactose intolerance is distinct from milk allergy, an immune response to cow's milk proteins. They may be distinguished in diagnosis by giving lactose-free milk, producing no symptoms in the case of lactose intolerance, but the same reaction as to normal milk in the presence of a milk allergy. A person can have both conditions.
Milk allergy is an adverse immune reaction to one or more proteins in cow's milk.Symptoms may take hours to days to manifest, with symptoms including atopic dermatitis, inflammation of the esophagus, enteropathy involving the small intestine and proctocolitis involving the rectum and colon. [2]
Not to be confused with lactose intolerance. [27] Allergy to cow's milk is the most common food allergy in infants and young children [11] but most outgrow the allergy in early childhood. Introducing baked cow's milk to allergic patients is associated with accelerated resolution of milk allergy. [28]
[2] [6] Newborns and infants may normally have soft and frequent stools; however, any noticeable changes in stool frequency or form (i.e. watery) can indicate toddler's diarrhea. [7] Other symptoms may include chills, fever, abdominal pain or cramping, nausea, and/or vomiting. [6] Undigested food and/or mucus may also be observed in stools. [8]
Food allergies affect up to 10% of the worldwide population, and they are currently more prevalent in children (~8%) than adults (~5) in western nations. [34] In several industrialized countries, food allergies affect up to 10% of children. [95] Children are most commonly allergic to cow's milk, chicken eggs, peanuts, and tree nuts. [21]
According to the Mayo Clinic, “Allergy symptoms, which depend on the substance involved, can affect your airways, sinuses and nasal passages, skin, and digestive system.” [5] The severity of the following symptoms varies from child to child. [5] The symptoms of indoor and outdoor allergies in children may include: [18] [19] Runny nose
After tracking hundreds of children, researchers conclude that babies who eat peanut protein early and often in their first five years of life are 71% less likely to be allergic to peanuts at age 12.
Children with chronic giardiasis are at risk for failure to thrive as well as more long-lasting sequelae such as growth stunting. [67] Up to half of infected people develop a temporary lactose intolerance leading to symptoms that may mimic a chronic infection. [1]