January 18, 2005
NEW! DNI BROCHURES ONLINE
Download the Lowdown on Diabetes, Heart Disease, Weight Loss & More


You may have seen the glossy DNI Health & Wellness Series while grocery shopping or waiting for a doctor's appointment. Now you can access, download and print the first six of our brochures in both English and Spanish.

Each DNN will spotlight a different brochure from the series: Weight Loss, Heart Healthy, Diabetes, Healthy Kids, Carb Confusion, Women's Health and Longevity. Our first -- Weight Loss -- offers 10 easy steps for slimming down, answers to common diet questions, and a bit of inspiration for tackling those New Year's Resolutions. Next issue: Heart Health, just in time for Valentine's Day.

ALCOHOLISM/OVEREATING LINK?
Same Brain Chemical Could Cause Booze/Food Abuse


Researchers at Princeton and Rockefeller Universities may have discovered a common neuropeptide linked to both alcoholism and overeating. Previous studies have linked a brain chemical called galanin to increased appetite. But in a new animal study published in the December issue of Alcoholism: Clinical and Experimental Research, the same chemical was found to trigger excessive alcohol consumption, leading scientists to speculate that galanin may play a role in both compulsive disorders.

In the study, galanin-hyped rats chose drinking over eating -- despite the compound's proven effects on appetite. Similar patterns are observed among human alcoholics who eat less regularly the more regularly they drink. Another parallel: Animal subjects would forgo sleep in favor of more alcohol, reflecting patterns of sleep disturbance found among human alcoholics.

Both alcoholics and chronic overeaters often complain of a feeling of helplessness when caught in the grip of addictive behavior -- as if there's "no off-switch" in their consumption of either food or booze. Co-researcher Sarah Leibowitz suggests that alcohol and fatty foods in particular can lead to "nonhomeostatic" behavior in certain susceptible individuals, where they keep on consuming beyond the point of satiation or even comfort.

While more research is merited, the study's preliminary findings are encouraging in that some day they may lead to more effective treatments for alcohol and food addictions. Meanwhile, the link between the two compulsive disorders may suggest that the same kind of programs, which have helped alcoholics achieve sobriety, may also allow overeaters to tap into their own higher power to surmount their problems. Both Alcoholics Anonymous and Overeaters Anonymous take a spiritual approach and rely on group support. For those who want the latter without the former, Weight Watchers uses the group dynamic to help provide encouragement and accountability.

COLD OFFICES = EMPLOYEE ERRORS
Lower Temperatures Lower Productivity


Lowering the thermostat at the office may save on electricity bills -- but it might also cost your company more in terms of lower productivity. Cornell University researchers observed that chilly workers not only make more errors, but fridge-like offices could increase a worker's hourly labor cost by 10%.

Professor Alan Hedge, Director of Cornell's Human Factors and Ergonomics Laboratory, took a look at this chill factor and found that when the office temperature was raised from 68 degrees to 77 degrees Fahrenheit, typing errors fell by 44% and typing output jumped by 150%. Warmer workers went from shivering to delivering: Keyboarding rates jumped from 54% of the time with a 25% error rate at 68° to 100% of the time with a 10% error rate at 77°.

What to do if you work in an igloo? Show higher-ups that higher temps could cut costs by as much as $2 per worker, per hour. If you're still left out in the cold, look on the bright side: Your fingers might be frozen on the keyboard, but your metabolism will work overtime to keep you from going sub-thermal.


A LOOK AT LOW-CAL SWEETENERS
They're Light -- But Are They Right?


Ever since I poured my first Diet Fanta I've been a sucker for artificial sweeteners. But just what have I been sucking down? They've marched from the lab to the marketplace to our tables: Sweet'N Low, NutraSweet, sorbitol -- now Splenda and stevia. Many a dieter (myself included) have turned to them when in need of a sweet fix without sugar's empty calories.

But just how safe are they? And what about new research that says such sweeteners might fool our taste buds -- but they still trigger insulin surges and weaken the body's ability to regulate weight and food intake? Has it all been just too good -- and sweet -- to be true?

The FDA has given the green light to sucralose, neotame, aspartame and saccharin after numerous, rigorous trials to assess their safety. Stevia, though currently the rage among the "all natural" crowd, has not yet been put through the same paces, but since it's sold as a supplement, not a food ingredient, the same safety standards don't apply.

The American Dietetic Association says "sweeteners can promote diet healthfulness" by reducing calorie intake and "increasing palatability of nutrient-dense foods." It urges dietary professionals "to provide consumers with science-based information about sweeteners," which we offer below.

Sucralose: Sold in packets and as a baking ingredient under the brand name Splenda, this sweetener is a chemically treated form of sugar that can't be metabolized for energy -- or stored as fat. This sugar sub has passed muster with some of the most stringent nutrition critics and was found safe in multiple animal studies.

Neotame: This sweetener is so "neo" it's not widely incorporated into many commercially available products. Though made from the same amino acids that constitute aspartame, neotame breaks down in the body differently so it's not toxic to folks with the rare disorder of phenylketonuria. Both animal and human studies have given neotame a green light.

Sugar Alcohols: Toothsome teetotalers won't get tipsy from this sugar fake, sometimes referred to as sorbitol or xylitol. The addition of an extra hydrogen molecule makes this sweet cheat less absorbable than regular sugar. This metabolic bypass, however, can leave some dieters gastrointestinally distressed, if you know what I mean. The FDA politely refers to this as a "laxative effect," so if this sweetie leaves you queasy, cut back on consumption. Keep in mind that some versions of this compound are more on the low-calorie rather than no-calorie range, so read the label carefully.

Aspartame: One of the most commonly consumed sweeteners, marketed variously as Equal, NutraSweet and NatraTaste, this synthetic derivative has been exhaustively studied and found safe except for those suffering from phenylketonuria, as mentioned above. Conspiracy theorists may choose to believe that it causes cancer, blindness and Alzheimer's -- but the evidence is not there to support such charges. Nor is there conclusive proof that it causes headaches, but if you're consuming large amounts of aspartame-sweetened soda and suffer from headaches, there's one way to investigate the existence of a causal relationship: Stop drinking the stuff and see if you feel better.

Saccharin: The granddaddy of artificial sweeteners, Sweet'N Low nearly got the old heave-ho when animal studies linked the additive to various cancers -- but kept its shelf space with a warning label. Later, the FDA and National Institutes of Health concluded that rats and humans did not develop bladder cancer (the main health concern) in the same way, and the warning was removed.

It should also be noted that the animal subjects in the early studies ingested such huge amounts -- on the magnitude of a person drinking two dozen two-liter bottles of saccharin-sweetened soda a day -- as to weaken the original data's relevance. Concerns persist, however, with the National Cancer Institute noting only last year that some risk may exist with regard to excessive consumption of those little pink packets and saccharin-sweetened sodas.

Stevia: OK, I'll admit it. I caught stevia-mania from various enthusiastic acupuncturists, unemployed yoga instructors and health store cashiers, and I now have a pantry full of the stuff. I was momentarily swept away by the romantic but irrational idea that a product cultivated by humble farmers in Paraguay and Brazil is somehow intrinsically safer than sweeteners developed by companies that have invested massive resources in R&D, submitted to government testing and have the most to lose should their product be discovered to possess deleterious side effects.

Since it's sold as a supplement, stevia has not been required to meet the same safety standards as the other sweeteners described above. But as health writer David Schardt reported: "When male rats were fed high doses of stevioside (stevia's active ingredient) for 22 months, sperm production was reduced, the weight of seminal vesicles (which produce seminal fluid) declined, and there was an increase in cell proliferation in their testicles, which could cause infertility or other problems. And when female hamsters were fed large amounts of a derivative of stevioside called steviol, they had fewer and smaller offspring."

To be fair, many other studies have found that stevia is safe -- and may even lower blood pressure. Stevia has been used for decades in Japan and other countries around the world. We are eager to see further, long-term, randomized trials before embracing stevia without reservation.

But Do They Work? Sugar substitutes have been studied extensively with regard to disease risk, and those given the FDA go-ahead are safe to consume in moderation. But what about efficacy? We've always assumed no-or-low-cal foods/beverages could help us lose weight, but a new wave of research is uncovering counter-intuitive new questions, such as: Do ersatz sweeteners actually trick us into eating more?

A recent Purdue University study raised the possibility that frequent consumption of diet foods and soft-drinks might interfere with the body's natural ability to gauge calorie intake, eventually leading to overeating and weight gain. The animal study, published in last year's July issue of the International Journal of Obesity, compared a group of rats fed a steady diet of sugar-sweetened drinks to a second group sometimes fed real-sugar, sometimes fake-sugar sweetened drinks.

After 10 days, both groups were given feed and sugar-sweetened drink. The group that had been consuming both sugar and sugar-substitute ate three times the calories as the real-sugar-only group, leading researchers to conjecture that the diet including artificial sweeteners interfered with the rats' natural food-intake instincts. Could the same be true for humans? Possibly, though research has clearly demonstrated that consumers who switch to diet vs. regular soda and thereby reduce caloric intake do indeed lose weight.

For dieters, it should reinforce the importance of keeping a food journal, watching portion control and enjoying reduced-calorie treats in moderation. Calorie-free does not necessarily equate to consequence-free, any more than "natural" equates with "safe." At the end of the day, there's still no free lunch, even when ordered with diet soda and finished with a spoonful of sugar substitute in your tea.

JUST PLUMMY
Recipes and Research to Change Your Tune on Prunes


Oh, the poor, impugned prune. While other tree fruit are used in odes to youth and beauty -- cherry lips, apple cheeks, melon, um, you know -- no one wants to look like a prune. The marketing stigma was such that prunes have been rhetorically re-introduced as "dried plums."

Here's the irony: Dried plums have one of the highest total antioxidant values among commonly consumed fruit, which means that eating more prunes might keep you from looking like them (by fighting the free radical damage that can accelerate aging). The better known nutrient associated with dried plums is fiber, which can help lower cholesterol and maintain regularity.

When further plumbed, dried plums were found to be an excellent source of vitamin K -- essential for strong teeth and bones. In one recent study, prunes provided protection against post-menopausal bone loss -- and indeed may even be a dietary ingredient in stopping and reversing osteoporosis. That bit of news caught my eye and landed dried plums in my pantry, though I wasn't quite salivating over the prospect of prunes in a dish for breakfast.

Smoothies being more my style, here's one from Super Smoothies: 50 recipes for Health and Energy, by Mary Corpening Barber and Sara Corpening Whiteford. Their "Adios Anemia" smoothie provides 2 mg iron (11% of your daily needs) plus a bevy of other vitamins and antioxidants. Blend half a cup low-fat vanilla yogurt, one cup soymilk, one-third cup stewed prunes, a banana and some ice.

Or try our featured SuperFood Recipe: Winter Cobbler with Prunes and Apples.


Jennifer GrossmanYO-YO NO-NO?
Lost Weight Then Regained? Try, Try Again!


Conventional wisdom about yo-yo dieting is that there's no upside to up-and-down weight cycling. But is that really true? There's no doubt that dietary rebound can take a toll on one's self esteem. Some of the other commonly cited "dangers" of yo-yo dieting deserve greater scrutiny -- and should be weighed against the well-documented health hazards of remaining overweight (hypertension, heart disease, cancer, stroke, Type 2 diabetes, arthritis, early dementia, etc.).

We've checked into some of the cliches about weight cycling, below, to separate myth from menace:

1. "Yo-yo dieting lowers your metabolism." FALSE. Among the reasons our metabolism may slow as we age is diminished muscle mass (and increased fat mass) -- since a pound of muscle burns 75 to 150 calories a day and a pound of fat burns only 3 calories day. If anything, weight loss efforts that include exercise to increase muscle will boost your metabolism, even if you gain some of the fat back.

2. "Yo-yo dieting is so bad for you, it increases your risk of death." FALSE. In fact, the opposite may be true: Just trying to lose weight lowers your mortality risk, according to a recent U.S. government health survey. While the study, published in the American College of Physicians' Annals of Internal Medicine, found the greatest longevity gains among those who succeed in losing weight, even those who tried and failed to drop pounds shrank their mortality rate by 19%.

Researchers speculate that dieting might be a marker of other healthy behaviors -- exercise, improved nutrition -- that ultimately lengthen life. A Porter Novelli survey seemed to confirm this, finding that 63% of dieters began exercising more after beginning a diet.

3. "Yo-yo dieting leads to diabetes." FALSE. A Harvard University study of 47,000 women found those who weight cycled significantly (+/- 20 lbs. at least 3 times in 4 years) were no more likely to later develop diabetes than women whose weight remained stable.

4. "Weight cycling will redistribute fat to the tummy." MAYBE. While abdominal fat is more dangerous than lower body bulge with regard to various weight-related ailments, most studies do not indicate that repeated weight gain and loss redistributes fat toward the middle. One study in the International Journal of Obesity did find that overweight women with a history of weight highs and lows tended to have more subcutaneous fat in their neck, arms and abs.

5. "Up and down dieting weakens the immune system." MAYBE. In a study of 114 obese, sedentary women ages 50 to 75, those who had lost and regained at least 10 pounds in the past 20 years had diminished immune function (as measured by the activity of white blood cells). The question remains open, in my mind at least, whether it was the loss-and-gain of weight, in and of itself, which weakened the subjects' immunity, or the way in which the weight was lost and regained.

For example, the profile of the "classic yo-yo dieter," featured in the Los Angeles Times article, had lost weight (later regained) on Atkins, liquid diets and diet pills -- each of which are associated with independent health risks. So was it the deflation-inflation of adipose tissue that took a toll on the dieter's resistance -- or was it all the garbage (saturated fat, processed diet foods, weight loss supplements) she was putting in her body, and the good stuff (fruits and veggies) she was leaving out?

The same question could be applied to the University of Michigan study in which women who had gained 10 or more pounds at least five times in one year were more likely to have decreased coronary blood flow than those with fewer weight changes. More research is needed to determine whether a history of being overweight, the method of losing weight, or the cycling of weight is the true culprit.

In the meantime, don't let past mistakes or fear of failure keep you fat. Steer clear of gimmicks like Atkins, identify and avoid your trigger foods, fill up on high-fiber, high-water content fruits and vegetables, and be disciplined about exercise -- to burn calories, boost metabolism and blunt appetite.

You may not succeed your first go-around, your second or third -- but as researcher Diane Berry Ph.D. observed from the results of her Yale School of Nursing weight loss study: "It takes multiple attempts" to win the battle of the bulge. "No one in my study lost weight and kept it off the first time around. If you get off base, forgive yourself and get back on track instead of giving yourself permission to start overeating."

Above all, don't use yo-yo mumbo jumbo as an excuse to avoid the weight loss fray. To put a twist on St. Augustine's famous phrase about love: Better to have lost and gained than never to have lost at all.



SUPERFOOD RECIPE

Winter Cobbler with Prunes and Apples

Prep: 15 min.
Bake: 40 min.
Makes: 9 servings

2 cans (8 oz. each) DOLE Crushed Pineapple in Juice, undrained
1 box (12 oz.) DOLE Pitted Prunes, halved
2 medium green cooking apples, peeled, cored and thinly sliced
3/4 cup DOLE Seedless Raisins
1 cup quick cooking oatmeal
3/4 cup pie crust mix
1/2 cup light brown sugar, packed
1 teaspoon ground cinnamon
1 teaspoon ground ginger

  • Combine undrained pineapple, prunes, apples and raisins in 9-inch square baking pan.
  • Combine oatmeal, pie crust mix, brown sugar, cinnamon and ginger, in medium bowl.
  • Spoon topping over fruit, patting down with back of spoon. Bake on bottom shelf of 375° F. oven 40 minutes or until top is browned. Let cool 30 minutes before serving. Dollop with low-fat vanilla yogurt, if desired.

    Per Serving: 341 calories, 5 g fat (1 g sat.), 0 mg cholesterol, 114 mg sodium, 72 g carbohydrate (6 g dietary fiber, 60 g sugars), 3 g protein, 1% Vit A, 10% Vit C, 2% calcium, 8% iron, 8% potassium, 2% folate.




  • WINTER OATMEAL MASK

    Dry Skin Recipe

    What you'll need:

    1 cup old-fashioned oatmeal, not instant
    1/4 cup Dole banana or avocado, mashed
    1 capsule vitamin E
    1 tsp. honey
    milk, as needed

    Blend oatmeal, banana or avocado and honey. Squeeze in contents of a vitamin E capsule, adding milk to get a spread-able consistency. Gently massage onto skin, let set for 10 minutes. Rinse. Pat dry; apply toner and moisturizer as usual.

    Sensitive Skin Recipe

    What you'll need:

    1 cup old-fashioned oatmeal, not instant
    3 Tbs. strongly brewed chamomile tea
    1/2 medium Dole banana, mashed

    Blend oatmeal and banana, adding tea bit by bit to achieve a paste-like consistency. Apply and follow same routine as above.



    Last issue: What's on top of your New Year's Resolutions? Nearly a third (32%) of respondents said weight loss, over a quarter said exercise more, a very impressive 21.6% said eat more fruits and vegetables, followed by reduce stress (11.7%) and improve finances (9.3%).

    Now here's a toughie ...

    With two-thirds of Americans either obese or overweight, it's likely we know and care about someone whose weight seriously threatens their health. A little bit of pudge is one thing, but what should you do when someone you love is literally eating himself or herself into an early grave?
    Share concern about health
    Offer to exercise with them
    Suggest diet tips/recipes
    Say nothing, it's their problem

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    Editorial Team:

       
    Dole Nutrition Institute       |
    Lead Editor:            JENNIFER GROSSMAN  
     

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