I'm eating some Breyers' Yogurt, which proudly proclaims on the container that it is "smart!" and "boost[s] your brain with DHA". Of course, when I first look at it, I see "with DNA" and am thinking, "whose DNA?"
Off to
Acronym Finder! It's either Docosahexaenoic Acid, Dihydroxyacetone, or Dehydroascorbate. Wikipedia confirms it's the first (an essential Omega-3 fatty acid), as the second is an active ingredient in sunless tanning lotions, and the last is a form of vitamin C. Aren't you glad I'm here to tell you these things?