Dairy overload is better termed as Digestive Overload and is caused by
Newborns can suffer from one or more of the causes. A breastfeeding mother’s diet, as well as offering both breasts in one sitting, formula choice and cluster feeding, compounds dairy overload. It is also a biological fact that in the first year of life we humans struggle to break down the casein and whey in dairy. This often has newborns and infants being diagnosed with 'dairy intolerance.' However, if dairy was introduced after one year of age the child would react better to it. Saying that, some children do have dairy intolerance which is often shown with the additional symptom of eczema.
Upset behaviour indicating dairy overload can be evident from Day One and can happen at any time, continuing as long as there is an overload of dairy intake. Proteins called casein and whey are found in dairy. It is known that the human digestive system struggles to break these components down, especially in the first year of life. This leads to communicated distress for newborns.
The enzyme lipase, found in breast milk and a newborn's saliva, helps to break down the fat in dairy. When newborns swallow minimal amounts of lipase, their digestive systems labour with the fat, and even more so if they are formula fed since it has no lipase. This can lead to large, unhealthy weight gains and allows abnormal passing of fat globules through the intestines causing discomfort.
Note: Some newborns experience an allergy to casein or whey which is more serious. True allergy to the proteins, or 'milk allergy', can be apparent within a few minutes to a couple of hours of drinking the milk. The immune system reacts to fight off the proteins by producing chemicals that bring about allergy symptoms. These consist of digestive difficulty, hives, eczema, skin itching, sneezing, nasal congestion, runny nose, coughing, wheezing, difficulty breathing and rarely, anaphylactic shock. If you see any of these symptoms straight after you have given a feed, seek immediate medical help.