To the couch potato, the word “plasma” likely conjures up thoughts of a new television; to Trekkies, it’s the high-energy gaseous field the USS Enterprise has to traverse periodically. In other words, the term by itself doesn’t necessarily conjure up a yuck factor. However, some take exception to the use of plasma, specifically animal plasma, in their pets’ food.
Okay, maybe the idea is a little yucky—but maybe we’ve become a bit too squeamish. Plasma is the vital fluid component of blood; it is found throughout the body and the medical community even considers it a tissue. In an analogy to milk, plasma is equivalent to whey, which seems to be in all sorts of foods and no one takes issue.
