Food Scoring Systems

My first question in the new year was from “fretful reader” who asked: I just read an article in the San Francisco Chronicle about the ONQI (overall nutritional quality index), which purports to "make nutrition easy". My college education (about 30 yrs old, damn near antiquated) is inadequate to the task of combining “positive nutrients”, “negative nutrients”, dividing them, and why didn’t they remember to subtract the number of ingredients on the list altogether…as a way of penalizing the "foods" that have those scary long lists in a designed to be unreadable, vertical typeface? Does it sound like I’m irritable? Probably.”

Dear irritable and fretful: Me too. I’m not much for scoring systems of any kind on food. I don’t think you need a score to know whether you are eating a junk food or not and is a slightly better junk food better for you?

I can’t remember who started these things but PepsiCo has its Smart Spots and Kraft has its Sensible Solutions and companies like these can set up their own criteria for what is and is not “healthier.” It’s a lot of fun to go to supermarkets and look to see which products qualify. Kraft’s Lunchables are a good place to start. See if you can tell the difference between products that do and do not qualify.

Hannaford Supermarkets got some independent nutrition researchers to develop criteria for awarding one, two, or three stars to healthier products and guess what: less than one quarter of nearly 30,000 products qualified for even one star and most of those were fruits and vegetables in the Produce section. So when the criteria are tough, hardly anything qualifies.

Now, Dr. David Katz at Yale has gotten a committee together to develop his own set. You have to have a degree in mathematics to understand it but that doesn’t really matter. Do you really need a scoring system to tell you that General Mills’ Wheaties (score: 246.2403) is better than Barbara’s Puffins Peanut Butter (9.937892) or Kellogg’s Cocoa Krispies (0.476746)?

Never mind the apparent but misleading precision of the 4 to 6 decimal places. All of these are low scores. The problem with these systems is that the criteria are arbitrary and make some highly processed foods look better than others. This is a great marketing tool but will it help people eat more healthfully? I doubt it. I take an extreme position on all such systems. They should not be allowed. If we must have them, the FDA needs to step in and set up one set of criteria. And I don’t envy the committee that has to do that. So I am adding one more item to my list of “rules” for supermarket shopping. If it has a self-endorsement of nutritional quality, don’t buy it; such things are about marketing, not health.