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|A1 vs A2 milk
Another aspect of the milk is whether the beta-casein component of the protein is A1 type or A2 type. Although it's not conclusive at this stage, research done at Lincoln University, in New Zealand, has shown correlations between A1 milk and diseases such as heart disease and Type 1 diabetes. These diseases have no such correlations with A2 milk.
|Originally, all milk was A2. About 5000 years ago there was a mutation in Europe and the A1 genes spread through cow herds. These days:
Goats and sheep milk is equivalent to A2 milk, as is human milk.
Heirloom breeds tend to have more A2, newer breeds - A1.
Different countries have a different mix between the two. For example, Iceland is mainly A2, where Finland is more A1. the level of heart disease is higher in Finland.
Masai and other African cattle only produce A2 milk, which is significant when you consider that the Masai are very healthy on a diet of mainly meat, blood and fermented milk, with little heart disease.
There is some A2 milk and cream available in New Zealand, try your organic store.
|Goat's milk may also have advantages when it comes to allergies. Goat's milk contains only trace amounts of an allergenic casein protein, alpha-S1, found in cow's milk. Goat's milk casein is more similar to human milk, yet cow's milk and goat's milk contain similar levels of the other allergenic protein, beta lactoglobulin. Scientific studies have not found a decreased incidence of allergy with goat's milk, but here is another situation where mothers' observations and scientific studies are at odds with one another. Some mothers are certain that their child tolerates goat's milk better than cow's milk, and mothers are more sensitive to children's reactions than scientific studies|
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