The USDA and Department of Health and Human Service have just released the long awaited 2010 Dietary Guidelines for Americans. Get my take on the new guidelines and what they mean for you in a special edition of the Nutrition Diva podcast.
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2010 Dietary Guidelines: Will Science Prevail Over Politics?
This coming Monday, the the USDA and the Department of Health and Human Services will unveil the 2010 Dietary Guidelines for Americans–the government’s official take on what and how we’re supposed to be eating. Obviously, Americans need guidance. We are literally killing ourselves with food. But are the government’s Dietary Guidelines making us any healthier?
Continue reading “2010 Dietary Guidelines: Will Science Prevail Over Politics?”
This Week’s Podcast: Cooking With Oil
I’ve talked about the pros and cons of various oils and how to store oils in previous podcasts but several of you have asked me to talk more specifically about what happens to oils when you heat them up and which ones are safest to cook with. Find out how to avoid the formation of harmful chemicals when cooking with oil in this week’s show.
Resolution Rescue: What Are You Craving?
If losing weight is one of your New Year’s resolutions, sooner or later you’ll probably find your resolve tested by an overwhelming desire for something really naughty. Hopefully, you’ll reach for a diet-friendly snack instead. But your chances of heading off dietary disaster will be higher if you choose an alternative that is a good match for your particular craving.
if you’re craving chocolate, for example, another stick of celery is probably not going to do the trick. (Then again, if you’re craving something salty, it just might.)
Here are some foods to help satisfy various cravings without ruining your diet:
Is Chicken Less Inflammatory Than Beef?
You’ll find lots of articles in the popular press about the value of anti-inflammatory diets. But many of them perpetuate certain myths about food and inflammation–in particular, that red meat is inflammatory and chicken is anti-inflammatory. I think that’s because many people simply assume that all the foods that we’re used to thinking of as “healthy” are anti-inflammatory and foods that we have been trained to view as “unhealthy” are inflammatory. In reality, the research on foods and inflammation challenges some of these assumptions.
A boneless, skinless chicken breast–that Holy Grail of diet food–is low in total fat and saturated fat, it’s true. But that’s not the whole story. Chicken is also relatively high in omega-6 fats, including arachidonic acid, a fatty acid that directly feeds cellular production of inflammatory chemicals. Continue reading “Is Chicken Less Inflammatory Than Beef?”
This Week’s Podcast: Can You Reverse Diabetes with Diet?
Recently, a reader forwarded me a link to a book about a diet that supposedly would cure type 2 diabetes. “My mom is a type 2 diabetic,” she wrote, “but I find it hard to believe that you can reverse it.” So, is this book for real? Can type 2 diabetes really be reversed with a diet? I take a closer look in this week’s show.
Is Coconut Sugar a Healthier Choice?
Q. Makers of coconut sugar claim that it has a low glycemic index and is high in potassium and some other minerals. Would using coconut sugar make my cookies the healthiest on the block?
A. Replacing cane sugar with coconut sugar might make your cookies a little higher in potassium. And to the extent that coconut sugar has a lower glycemic index than regular sugar, the cookies might not cause quite as high a bump in blood sugar–although I’m sure it would still be significant.
But here’s the thing: The fact that coconut sugar has a lower glycemic index is a tip-off that it has a high fructose ratio. (Same is true of agave nectar.) There’s been a lot of buzz about fructose lately: how fructose doesn’t stimulate the release of hormones that signal satiety or fullness, leading to over-consumption and how over-consumption of fructose triggers fat storage or even liver damage. Most of the hysteria, of course, has been focused on high fructose corn syrup. Ironically, high fructose corn syrup is a lot lower in fructose than “healthy” sweeteners like coconut sugar and agave nectar. Continue reading “Is Coconut Sugar a Healthier Choice?”
Does Cooking With Oil Create Trans Fats?
Note: This post was updated on 11/24/2013 to correct a typo in the temperatures required to isomerize fats.
Q. How exactly is trans fat created? If I bake with some (say, 1/4 cup) oil in a batter, does that make trans fats?
A. We’ve all read a lot about the dangers of trans fats. Most of the trans fat in our diet comes from artificially hydrogenated oils that are still widely used in food manufacturing. These “Franken-fats” are polyunsaturated fatty acids (PUFAs) that have been twisted into an unnatural configuration called a trans-isomer. This means that the molecule contains the exact same number and type of atoms as it did before, but they are arranged in a different shape.
But what a difference that small change makes! Polyunsaturated fats and their trans-isomers produce completely opposite effects in the body. While PUFAs help to improve cholesterol profiles and reduce your risk of heart disease, trans fats contribute to heart disease by fueling inflammation, raising bad cholesterol and lowering good cholesterol. Continue reading “Does Cooking With Oil Create Trans Fats?”