“Is your taco salad healthy? “Of course it is. It’s a salad, isn’t it?”
Well, Mr. Real Man of Genius, those few shreds of lettuce don’t mean squat:
Charles Benbrook … and colleague Donald Davis developed a nutrient quality index — a way to rate foods based on how much of 27 nutrients they contain per 100 calories. Four of the five lowest-ranking foods (by serving size) are salad ingredients: cucumbers, radishes, lettuce and celery. (The fifth is eggplant.)
Those foods’ nutritional profile can be partly explained by one simple fact: They’re almost all water. Although water figures prominently in just about every vegetable (the sweet potato, one of the least watery, is 77 percent), those four salad vegetables top the list at 95 to 97 percent water. A head of iceberg lettuce has the same water content as a bottle of Evian (1-liter size: 96 percent water, 4 percent bottle) and is only marginally more nutritious.
It’s worse than that, even:
The makings of a green salad — say, a head of lettuce, a cucumber and a bunch of radishes — cost about $3 at my supermarket. For that, I could buy more than two pounds of broccoli, sweet potatoes or just about any frozen vegetable going, any of which would make for a much more nutritious side dish to my roast chicken.
Lettuce is a vehicle to transport refrigerated water from farm to table.
I’m almost tempted to send back that bottle of Evian and order, yes, a Bud Light.