Sunday, August 29, 2010

Hooray for Chocolate!

The scientific name for chocolate, Theobroma cacao, literally means the "food of the gods." Maybe that should be amended to "food of the goddesses," since it is a rare woman who doesn't swoon over chocolate. Few among us have not indulged in a little chocolate therapy to help mend a broken heart or get over a bad day at the office. Now scientists are discovering that dark chocolate helps our hearts in many unexpected ways. For example, it has important anti-oxidant effects that may help protect our arteries against the damage inflicted by bad (LDL) cholesterol. It may raise our HDL (good) cholesterol slightly, reduce our chances of developing harmful blood clots, and might even lower blood pressure a bit.

This month, hot off the presses, comes a study authored by three very smart women (and one smart man) from Harvard Medical School and the Karolinska Institute in Sweden, evaluating the effects of chocolate on the incidence of congestive heart failure in Swedish women. Over 30,000 women filled out diet questionnaires at baseline; they were monitored for health issues over the next 9 years. The verdict? Moderate amounts of chocolate (1-2 one-ounce servings per week) was associated with a 25% lower risk for congestive heart failure. Any more than that did not have the same protective effect.

In this study, milk chocolate accounted for most of the chocolate consumed. Milk chocolate has much less of the antioxidant flavonoids that are so powerful in dark chocolate. It also tends to have more saturated fat. It would be interesting to know how dark chocolate would compare. Most likely, it would have come out ahead. Nevertheless, this is great news for chocolate lovers, although not a license to overindulge. Keep your weekly chocolate habit to a total of 1-2 ounces, and your chocolate therapy may help to keep you happy and healthy.

Sunday, August 15, 2010

High Fructose Corn Syrup: High Time for a Change?

We may be smart, but when it comes to sugar, our brains tend to go a little gooey. Sugar is the original sweetener, and the average American shovels in over 135 pounds of it per year, much of it from sugar-saturated soft drinks; children may put away even more. Our addiction to sugar has fueled the burgeoning rates of diabetes and obesity in adults and kids alike. Pancreatic cancer has also been linked to high levels of sugar consumption. How can something so sweet be so wrong?

Despite its bad rep, sugar delivers only 15 calories per teaspoon. So a teaspoon or even two in your tea is really no big deal, unless you’re a diabetic. But a soft drink is not such innocent fun. Chug a single can of pop, and you’ve bought yourself the equivalent of a whopping 10 teaspoons of table sugar. And when taken in quantities that large, sugar, the ultimate simple carbohydrate, provokes wild swings in blood glucose levels, setting you up for the cycle of sugar highs followed by those awful sugar cravings that will inevitably sneak in, fooling you into thinking you’re hungry for more.

Corn syrup is the base for most commercial sugar sweeteners. Manufacturers prefer high fructose corn syrup (HFCS) because it is less expensive than sugar, mixes well with other ingredients, and helps to retain product freshness. It is one of the ingredients that keeps commercially baked goods, like breads and cookies, soft and chewy. On average, Americans glug and gobble about 63 pounds of high fructose corn syrup each year, or up to 10% of our total calorie intake.

That is why a recent study from UCLA, just published in the medical journal Cancer Research, is so alarming. In this study, scientists reported that cancer cells from the pancreas were able to use the fructose in HFCS to divide even more rapidly than they did when they were exposed to a glucose solution.

Other studies and statistics also highlight the harmful effects of HFCS. Women who drink at least one non-diet soda a day (most of which are full of HFCS) are nearly twice as likely to become diabetic as those who rarely drink these beverages. And it is a sad commentary on our society that children 13 and up drink more soft drinks than fruit juice or milk. Over 25% of beverages consumed in the US are carbonated drinks, with the average American weighing in at 52 gallons of carbonated soft drinks, including diet drinks, yearly. Juice drinks don't get off easy, either, since many are sweetened with HFCS (check the label to be sure). A 12 oz serving of fruit flavored punch will provide about as much sugar as a can of soda, with minimal health benefits. As an occasional treat, a soft drink or juice box probably won’t hurt, although there are certainly much better treats to be had. But as a way of life, drinking soda is one of the easiest ways there is to pack on the pounds. Drink 23 sodas in a month, less than one a day, and you’ve just bought yourself one pound. Voila!- in a year, you’ve gained 12 pounds, without even trying.

What's the best solution? Not diet drinks, which are full of chemicals, and don't really solve the issue of the overactive sweet tooth. No, the answer is simple and pure- water, carbonated or not, is the smartest choice. And if you need a little sweetness, it's ok to mix in a little bit of natural fruit juice for flavor.