NOTE: I have changed this question to make it more general as the previous question seemed to be too focused on something that has no bases ("Kefir" drink sounding like Kefira etc).
Would one be best not mentioning the names, or using (in this case drinking) products that have words that hint of evil or nasty things?
The Lubavitcher Rebbe would advise people not to use the common word "taboo" (voodoo word), and I've heard stories of our grandparents' grandparents scolding them for phrases like "I am cold" (it sounds like a corpse).