Re: dinner with a two-time cancer survivor
ALL MILK, including human breast milk, naturally contains somatic (white) cells, which are critical in fighting infection and ensuring good health.
This is what many, knowingly or not, refer to as "pus" in milk.
"The majority of the cells in a somatic cell count are leukocytes (white blood cells), and some are cells from the udder secretory tissue (epithelial cells). The epithelial cells are part of the normal body function and are shed and renewed in normal body processes. The white blood cells serve as a defense mechanism to fight disease (infection), and assist in repairing damaged tissue."
http://ianrpubs.unl.edu/Dairy/g1151.htm
Somatic Cells
Cells from the body that compose the tissues, organs, and parts of that individual other than the germ (sex) cells.
http://www.meta-library.net/biogloss/somacel-body.html
The Somatic Cell Count and Milk Quality
"The somatic cell count (SCC) is commonly used as a measure of milk quality. Somatic cells are simply animal body cells present at low levels in normal milk. High levels of these cells in milk indicate abnormal, reduced-quality milk that is caused by an intramammary bacterial infection (mastitis).
(my added note) get your milk from healthy cows... you are not going to find healthy cows in a commercial, corporate, Dairy farm. End Note
The majority of the cells in a somatic cell count are leukocytes (white blood cells), and some are cells from the udder secretory tissue (epithelial cells). The epithelial cells are part of the normal body function and are shed and renewed in normal body processes. The white blood cells serve as a defense mechanism to fight disease (infection), and assist in repairing damaged tissue.
Milk markets routinely rely on somatic cell counts to help ensure a quality product. SCC levels are monitored to assure compliance with state and federal milk quality standards. Today, most markets pay a premium for low SCC, good-quality milk."
http://ianrpubs.unl.edu/dairy/g1151.htm
Somatic cell count is determined by the health of the milking cow, or if mixed into a collective tank the health of the herd.