What is the need for PHOs in food products?

[Guest guest]

When I was at the grocery store yesterday I was looking around at all

the " modern " convenience foods. Just about everything has some

combination of PHOs as an ingredient. Why is that? What is its

function and why couldn't they just use regular fats? Is it because

regular fats go rancid? Even our favorite Montreal Steak Seasoning has

PHO listed. I called McCormick Spice to inquire and complain about it,

but was given, " it's in the formula " as the answer.

Sharon