The Hemp Connection:
lutein

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!

The day after the FDA warning about pistachio nuts came out, I was in a local grocery store. As I walked through the produce aisle, I noticed the produce manager and his clerk with a huge bin; they were emptying out their inventory of pistachio nuts into a huge garbage bin. They had no idea where their pistachios had come from, and they had to throw them away.

I felt sad that so much food had to be wasted.

The day that the FDA warning about pistachio nuts came out, I received a note from Whole Foods Market. They were working to source where all their pistachio nuts came from. A detailed memo was released later in the week regarding the safety of pistachios in their many stores.

Please read this blog post and make your own decisions. But do consider the value in being an informed consumer. If you are judicious about where you shop, it may be worth a little extra investment. If you make a choice to purchase locally grown products at your farmer's market, you're not only supporting a local small business, you know exactly what hands your food passed through before it fell into yours.

There will come a time when pistachios will be considered generally healthy to eat, no matter what the source. And when that comes, keep these pistachio fun facts in mind:

--a one ounce serving of pistachio nuts scores higher on the USDA's antioxidant scorecard than a cup of green tea.
--pistachio nuts can help to reduce bad cholesterol and raise good cholesterol
--pistachio nuts are high in lutein and can help prevent macular degeneration, a leading cause of blindness
--pistachio nuts are a good source of many vitamins and minerals, including: thiamin, vitamin B6, copper, manganese, potassium, dietary fiber, phosphorus and magnesium
--pistachio nuts are a good source of healthy fats, including omega-3's

My point is…I hope you don't eliminate pistachios completely from your diet because of what you've heard in the news. The pistachio recall was specifically for pistachios from Setton Farms. If you can shop at a store or farmer's market where you can be assured pistachios did not pass through this processing plant, they can be a wonderful addition to your PCOS eating plan.

Here's a recipe for white bean pistachio chili to get you started!

If you're a frequent traveler, chances are you have already had an opportunity to experience the new security measures at the airport, which include the new full body scanner.

One of the biggest concerns about this scanner has been the radiation exposure these scanners emit. Because radiation can affect fertility, a concern of many readers of this blog, I did some fact checking.

What is interesting to note is that before these scanners were even in existence, anyone stepping on an airplane was already increasing their exposure to radiation! In a 1998 study published in Aviation, Space, and Environmental Medicine, scientists concluded that an airline captain is exposed to 37% more radiation per year (219 millirem) than a nuclear power plant worker in the same period of time (160 millirem). For the pilot, that is the equivalent to 22 chest x-rays, for the power plant worker, 16 chest x-rays.

The National Institute of Standards and Technology, in an independent study, reported that the average scan with the TSA backscatter x-ray scanner provides 0.0024 millirem of radiation exposure. Meaning, you would have to have 4,000 TSA scans to equal one x-ray. The people at greatest risk for increased radiation exposure from these machines is most likely the TSA workers themselves, who conduct their work in the presence of the scanners for hours at a time.

Bottom line:

1. Your biggest dose of radiation exposure is actually coming from the time you spend on the airplane at altitude, not the short amount of time in the scanner.
2. If you are a pilot, flight attendant, or frequent flyer with concerns about fertility, it certainly is a good strategy to start being more diligent about your intake of antioxidants. I've listed the important ones below that are consistently recommended as cancer fighters.
3. If you are a reporter researching the scanner issue, instead of scaring travelers, perhaps the more relevant issue is why TSA is not requiring its employees to wear dosimeters to be sure their own exposure over time is not an occupational risk. It might also be a very quick way to identify a machine that is malfunctioning and exposing flyers to unnecessary additional radiation.
4. Flight crews and TSA employees might want to consider packing their bags with more fruits and vegetables. Especially since these are not items commonly available in airport food courts.
5. In addition to the standard security questions TSA members should ask for your 24 hour diet recall to be sure you're sufficiently protected for your flight. (Couldn't resist that one…just KIDDING!)
6. For our specific population most likely reading this post, I strongly recommend you discuss your travel strategy with the appropriate caregiver if you have a history of cancer, are in the middle of infertility treatment, or have a history of sexual abuse. It's best to know what choices are most appropriate for your personal situation before standing in the TSA line.

So if you're heading home at altitude for Thanksgiving, consider that the broccoli, cranberries, and sweet potatoes (even a small extra sliver of pumpkin pie) aren't all that bad if you're going to have seconds. Enjoy them, as well as your family.

BEST ANTIOXIDANTS FOR COUNTERING RADIATION

Vitamin C parsley, broccoli, bell pepper, strawberries, oranges, lemon juice, papaya, cauliflower, kale, mustard greens, and Brussels sprouts.

Vitamin E mustard greens, chard, sunflower seeds, turnip greens

Vitamin A carrots, sweet potatoes, pumpkin, spinach, beef, collards, kale, turnip greens, beet greens, winter squash

Lutein and Zeaxanthin kale, spinach, turnip greens, collard greens, romaine lettuce, broccoli, zucchini, garden peas, Brussels sprouts

Proanthocyanadins apples, cinnamon, cocoa, grape seed, grape skin, red wine, cranberry, black currant, green tea, black tea, and chokecherry.

Selenium button mushrooms, shiitake mushrooms, cod, shrimp, snapper, tuna, halibut, calf's liver, and salmon.

Lycopene tomatoes, pink grapefruit, watermelon, and guava

Aaahhh eggs, the misunderstood member of the nutrition family. Poor guys…when I graduated from college, in the height of the low cholesterol-low fat craze, we were indoctrinated to teach that"egg" was just another word for poison.

My how things have changed!

A couple of months ago I heard Dr. Susan Kleiner (www.goodmooddiet.com) speak at a conference. She shared that not once has there been a research study demonstrating that when you take eggs out of the diet, that this dietary change reduces cholesterol. As well, there has been research demonstrating that adding eggs (plus yolks) to the diet does NOT raise cholesterol. All those yolks I threw down the drain all those years…for nothing.

I figured I'd better find some hard research to back THAT one up, so here's a quick list of interesting titles I found in PubMed:
Dietary cholesterol from eggs increases plasma HDL cholesterol in
overweight men consuming a carbohydrate-restricted diet
Egg yolk improves lipid profile, lipid peroxidation and retinal abnormalities
in a murine model of genetic hypercholesterolemia.
There are many more, but here I just wanted to make my point. Egg yolks are not the ugly stepchild of the protein family anymore.

In fact, there are some great nutrients to be found in eggs.

1. Lutein and xeanthin are two carotenoid compounds that can help maintain visual health. One group of researchers reported that 6 eggs per week can help increase lutein and xeanthin levels in the macula, the part of the eye that degenerates in this country's leading cause of blindness, macular degeneration.

2. Eggs contain choline. This compound is very important for brain function. Choline is the building block for acetylcholine, the neurotransmitter involved in memory, and the one that many Alzheimer's medications seek to increase.

This compound is exceedingly hard to get in the diet. In fact, about the only two places you can find it, are egg yolks, and soy. (Well, also in cooked chicken, beef, veal, and turkey livers, but I didn't think that would have any of you running for your grocery lists so it goes in parentheses.)

If you've got PCOS, you've probably been told to avoid soy. So that leaves egg yolks for getting this very important memory booster.

3. If you hate fish but you need to increase your fish-based omega-3 intake, omega-3 eggs are a very cost-effective option. If you struggle to get enough vegetables in your diet, omelets and frittatas are great ways to get them in. Just be sure you use olive oil when you cook them.

I thought it might be timely to include eggs on this blog, because as food prices rise, they can certainly be much more cost-effective than salmon, as well as other proteins that are now taxing your grocery bill.

Mutungi G, Ratliff J, Puglisi M, Torres-Gonzalez M, Vaishnav U, Leite JO, Quann E, Volek JS, Fernandez ML. Dietary cholesterol from eggs increases plasma HDL cholesterol in overweight men consuming a carbohydrate-restricted diet. J Nutr. 2008 Feb;138(2):272-6.

Fernández-Robredo P, Rodríguez JA, Sádaba LM, Recalde S, García-Layana A.
Egg yolk improves lipid profile, lipid peroxidation and retinal abnormalities in a murine model of genetic hypercholesterolemia. J Nutr Biochem. 2008 Jan;19(1):40-8.

Wenzel AJ, Gerweck C, Barbato D, Nicolosi RJ, Handelman GJ, Curran-Celentano J. A 12-wk egg intervention increases serum zeaxanthin and macular pigment optical density in women. J Nutr. 2006 Oct;136(10):2568-73.

Goodrow EF, Wilson TA, Houde SC, Vishwanathan R, Scollin PA, Handelman G, Nicolosi RJ. Consumption of one egg per day increases serum lutein and zeaxanthin concentrations in older adults without altering serum lipid and lipoprotein cholesterol concentrations. J Nutr. 2006 Oct;136(10):2519-24.