The Hemp Connection:
pecans

Happy Monday to all of you!

Sorry for the silence, I was in Boston for a sports nutrition conference, promoting the Nordic Naturals line of fish oils. I've been sidelined from my half marathon training with a cranky knee, and it was so nice to get off of the elliptical trainer, get outside, and walk along the Charles River to and from my hotel and the conference!

Something I was very happy to see, throughout the conference, was the emphasis on nuts in general as a healthy food. I've been frustrated for a long, long time that the walnut people seemed to be the only nut commodity board with media contacts. Not that I don't like walnuts, but there's nothing wrong with other nuts as well.

I did an analysis for an article a few years ago, in which I compared the ratios of beneficial fats (omega-3's and monounsaturated) to potentially detrimental fats (omega-6's and polyunsaturated). And when they were all lined up in terms of most beneficial to least beneficial…walnuts actually turned up at the bottom of the list. Macadamias came out on top!

I use that analysis in my trainings, and dietitians will always immediately say,"But macadamias are so high in fat." Precisely. But it's the kind of fat that keeps us healthy. Lucky for me…my very favorite way to have nuts is macadamia nuts roasted in coffee, the way they fix them in Hawaii.

Anyway…(I tend to get distracted in this blog, don't I?)…

…one of the presentations showed data for macadamias, pecans, and pistachios, suggesting that they, too, are good foods to include in an anti-inflammatory (aka anti-PCOS and pro-fertility) diet. Nuts, in addition to good fats, have a variety of antioxidants that can delay and prevent aging and help fight stress. I even learned that the green part of pistachios contains lutein, which makes them good for eye health. Who knew a food so fun to eat would also be so helpful to my health?

Of course, there's a limit to how many nuts can be healthy, and fat has calories, no matter where it comes from. But if you're reaching for a handful of pistachios instead of a bag of Fritos, it's nice to know you're also reaching for better health.

So this week…go nuts!

Way back in the early 80's when I was a brand-new dietitian, we were taught to teach our clients to avoid nuts because of their high fat content. Today, nuts are the new health food. But research is often written up in ways that place a specific nut in the spotlight, without a big-picture perspective.

For example: Walnuts are routinely listed as"the" nut to eat because of their high omega-3 content. Most people do not realize that the omega-6 content of walnuts is so high that it is mathematically impossible to improve your dietary omega-6 to omega-3 ratio by eating only walnuts and no other nuts. Does that mean you shouldn't eat walnuts? Absolutely not! In all honesty, it is mathematically impossible to improve your omega-6 to omega-3 ratio with any nut. It is, however, yet another example of the imbalances we create when we focus on a handful of"super foods" and don't pursue variety.

Being the statistics nerd that I am, I spent the other afternoon looking at 10 different nuts in several different ways. I came to some interesting conclusions. Let me work you through what I did. I don't mean to be tedious, I just want to be transparent so anyone else can work through the analysis just as I did. If you're just looking for what nuts are best to eat,simply skip to the bottom of this post.

1. Analysis one: Best anti-inflammatory index (potential for a food to prevent or promote inflammation, as indexed at http://www.nutritiondata.com/), ranked in order of best to worst:
macadamia hazelnut almond cashew peanut pistachio Brazil pecan walnut pine
2. Analysis two: Omega-3 fatty acid content, ranked from highest to lowest per ounce of nuts: walnut pecan pine pistachio macadamia cashew hazelnut Brazil peanut almond Important point of interest: almonds are the only nut that contain absolutely NO omega-3 fatty acids.
3. Analysis 3: Omega-6 to omega-3 ratio, ranked from lowest (most beneficial) to highest (least beneficial) walnut macadamia Brazil pecan cashew pistachio hazelnut pine peanut almond
4. Analysis 4: Total omega-3 and monounsaturated fat content, ranked from highest (most beneficial) to lowest macadamia hazelnut pecan almond cashew brazil peanut pistachio pine walnut
5. Analysis 5: Total saturated fat content, ranked from lowest (most beneficial) to highest walnut almond hazelnut pine pistachio pecan peanut cashew macadamia Brazil
SUMMARY ANALYSIS: In each list, I placed a number"1" next to the top item, and numbered each nut below it in numerical order. Then I added up the scores for each nut based on their rank in each category. The lowest score shows the overall rank. This helps nuts that many not have one outstanding quality still receive a decent ranking--it gets credit, in other words, for being all-around pretty good without being written off for having one quality that is considered"bad" striking it off as"unhealthy". It also keeps a nut with one outstanding quality for getting too much credit when there may be nutritional aspects that truly keep it from being a superfood.
The final rankings, with the most potentially beneficial at the top: macadamia hazelnut walnut pecan cashew almond/pistachio (tied) Brazil/pine (tied) peanut
I guess you could say…just like people, all nuts have their good and not-so-great qualities. By spending too much time with one, you'll miss out on the benefits of the others. Diversify your interests, and you'll get the best benefit.