Is the glass half empty, or half full? This is a question often asked to denote perspective. If you answer half empty, the indication is negative - no cloud has a silver lining, doom and gloom are impending (if they haven't already arrived). If your glass is half full, you apparently live in a bed of roses, wear rose colored glasses, find the silver lining in every cloud, and skip to work with a song on your lips.
If we apply this theory to food-related items, there are several foods that are on the fence. My personal outlook determines whether or not I deem these foods healthy. For example: Cheese. Full of fat, but has protein and calcium. And it tastes good. Ice cream. Full of fat and sugar, but also has calcium. Chocolate. An under-appreciated vegetable (the bean family) that provides many feel-good benefits when ingested. (I just took a break from writing this blog entry to enjoy a lovely, fudgy, chocolate chip infused brownie. Ahhh, sweet nectar!) And Bacon. A good source of protein and energy, but oft lamented for it's high fat content. But bacon is good with everything. Crumble bacon in a salad; bacon and eggs; bacon and broccoli: BLT sammiches; the list goes on and on.