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(Сразу вспоминается история с пшеницей, которая с некоторых пор мутировала и стала содержать вредный белок: http://yoginka.livejournal.com/228096.html).
What is A1 Versus A2 Milk?
http://www.handpickednation.com/what-is-a1-versus-a2-milk/
"The health problems are believed to be caused by a tiny protein fragment formed when we digest A1 beta-casein, a mutated protein in the milk. Milk that does not contain this mutated protein is called A2 milk. Today, the majority of the cows in the USA carry the A1 gene. The beta-casein proteins found in cow’s milk are made of a string of 209 amino acids all linked together. The difference between A1 and A2 amazingly is just one of those amino acids. With A1 milk, number 67 is a histidine instead of a proline! The proline binds very tightly to the amino acids on either side of it where the histidine does not. The histidine breaks off forming a peptide of a string of 7 amino acids called beta-casomorphin-7. Casomorphins have opioid (narcotic) properties and are not digested well by some people. This apparently can possibly lead to health issues in certain individuals."
"What can you do? You can ask your source for local milk if they are breeding for A2/A2 milk."
Подробности: https://en.wikipedia.org/wiki/A2_milk
P.S. Если кто-то меня читает и не понимает английский, могу пояснить, спрашивайте. А заранее лень переводить, меня почти никто не читает.
What is A1 Versus A2 Milk?
http://www.handpickednation.com/what-is-a1-versus-a2-milk/
"The health problems are believed to be caused by a tiny protein fragment formed when we digest A1 beta-casein, a mutated protein in the milk. Milk that does not contain this mutated protein is called A2 milk. Today, the majority of the cows in the USA carry the A1 gene. The beta-casein proteins found in cow’s milk are made of a string of 209 amino acids all linked together. The difference between A1 and A2 amazingly is just one of those amino acids. With A1 milk, number 67 is a histidine instead of a proline! The proline binds very tightly to the amino acids on either side of it where the histidine does not. The histidine breaks off forming a peptide of a string of 7 amino acids called beta-casomorphin-7. Casomorphins have opioid (narcotic) properties and are not digested well by some people. This apparently can possibly lead to health issues in certain individuals."
"What can you do? You can ask your source for local milk if they are breeding for A2/A2 milk."
Подробности: https://en.wikipedia.org/wiki/A2_milk
P.S. Если кто-то меня читает и не понимает английский, могу пояснить, спрашивайте. А заранее лень переводить, меня почти никто не читает.
