Currently viewing the category: "carbohydrates"

Move over, Darwin. Natural selection is sooooo yesterday. The future is in artificial selection–you know, genetic engineering. That’s right, you want a blue-eyed baby? No problem. Five pound strawberries–no problem. Cloned meat products? Yes. And now there may be a genetic solution to indolence. Intrigued? Read on.

Scientists at UC Berkeley have found a gene that is responsible for turning carbohydrates into fat. The gene, called DNA-PK, works in the liver, regulating the conversion of sugars into fats. What this means is that that silly little process of turning low energy carbs into higher energy triglycerides is controlled by this one simple gene. Mice bred with a disabled version of the gene were able to eat large portions of carbohydrate meals–the equivalent of the all-you-can-eat-pasta bar–and still have 40% less body fat when compared to a control group of normal mice. And the implications for humans? The researcher team thinks it might be a great target for new drugs to help prevent obesity.

Modern science never ceases to amaze me. Think about it, you can eat all you want–pizza, Ding Dongs, Fig Newtons for days–and not gain an ounce. What do you think? Brilliant, yes? Forget that our genetic makeup is the product of billions of years of evolution. Forget that natural selection is the selection of favorable traits that become more common in successive generations. And forget that there might be an evolutionary advantage to turning low energy carbohydrates into higher energy fats–trivialities all. What matters is that we can manipulate nature–Ta-Da!–cuz we can. Reminds me of that joke about why a dog licks his nards. Silly humans.

Strange thing, diets. What’s touted as a cutting-edge weight loss remedy may actually have benefits extending beyond a slim trim. New reports show that a modified Atkins-like diet may actually decrease the amount of seizures suffered by epileptics. Very interesting, yes…

A study performed at the John’s Hopkins School of Medicine fed 30 epileptic subjects a diet restricted to 15 grams of carbohydrate a day. The rest of their calories came from fats such as eggs, meats, oils and heavy cream. In addition, the subjects were free to eat as much protein and no-carb drinks as they wanted. After one month on the diet, half of the subjects (15) experienced 50% less seizures. Remarkable!

Right now scientist are unsure of exactly what causes the reduction in seizures, but it is good news particularly for epileptics who respond poorly to anti-convulsant drugs. The subjects in the study all had unsuccessfully tried two medications in the past, and were having ten seizures per week on average. The low-carb diet has already been established as a valuable seizure control in children, but researchers wanted to see if the benefits extended to adults as well.

The one negative of the study is that only two-thirds of the participants stuck with the diet for longer than three months, finding it simply “too restrictive”. This is not surprising coming from a culture where carbohydrates make up a large portion of its calorie intake. Putting things into perspective, 15 grams of carbohydrate are:

  • one slice of bread
  • half a round pita bread
  • one small apple, pear, peach, plum, orange, or ½ banana, or ½ grapefruit
  • 2.5 ounces of peanuts (approximately a package)
  • 3 cups of popcorn

And they could only have one of the above…per day! I know, I know–to prevent seizures most everybody would say they’d do anything. But if you’ve never tried to eat that little carbohydrate, you don’t know how hard it can be. Without a doubt, it’s still way worth the effort; but I’m sympathizing anyway–I’ve changed enough habits to understand the challenge. I guess it just comes down to prioritizing one’s values.

I think the most important thing we can all pull out of this is to remind ourselves how carbohydrate-heavy (read: sugar) our western diet is. If you want to get the most from your health, start cutting down the carbs and sugar now, while you’re still healthy. And definitely don’t start the habit with your children. These eating patterns are learned behaviors; they can certainly be unlearned, but much easier to not learn them in the first place. We all need carbs, no doubt; but we definitely don’t need them to the excess that many of us consume. So be smart–chill on the carbs a bit; you’ll do wonders for your health as a result.

Which diet is better? A low carb, high protein diet like Atkins or South Beach? Or a high carb, low fat diet–the type pushed by the sponsors of the food pyramid? Well as far as weight loss is concerned, you know my opinion–calories are calories. So, either way, you’ll gain weight if your calorie intake is greater than what you burn.

But one thing we know for certain: Diets that are higher in carbohydrates seem to fare better for those involved in intense mental activity. And now we’ve got further evidence. Recent research shows that, although both low carb, low fat and high carb, low fat diets help people lose weight, the latter will actually help increase cognitive processing. That is, high carb diets help the brain work faster.

Yup, you all knew that right? Glucose–a carbohydrate–is the only fuel suitable for the brain; therefore, carbohydrate is essential. In the study, overweight and obese men and women were fed either a high carb or low carb diet for eight weeks. The researchers then looked at mood and cognitive function (through intelligence and reasoning tests). Mood was not affected by the amount of carbohydrate consumed, but those eating more carbs solved problems faster.

I find this important information because I am often asked what I think about the low carb diet. My standard answer: Eat everything in balanced moderation, and increase carb or protein depending on your activities. Working hard at the office? Increase your carbs a little. Fruits are best, but grains are good too; just don’t make Pringles your carb of choice (well, OK, have a few). Working out a lot? Increase your protein intake. Try nuts, cheese, turkey meatballs, chocolate milk (yes, it’s good too…in moderation), or whatever floats your boat. All this information, and more, is in my soon to be released book, The Six Keys To Optimal Health. Just follow basic principles and forget the fads, man. Fads come and go (remember food combining and Fit for Life?), but principles are forever. So be smart and eat well. It doesn’t have to be rocket science.

 

There’s a misconception among some people that a high protein, low carb diet is best – especially for those trying to remain slim. I’ve got nothing against low carb diets if they’re done for a short period of time to reach a goal, and then transitioned to a more balanced diet. But for some people this type of diet seems to be the Holy Grail.

I delight in bursting this bubble because I am convinced that over the long-haul this diet is just unhealthy. A new study shows that whole grains are important to preventing the thickening of arteries – a precursor to heart disease and stroke – so a balanced diet consisting of carbohydrates, proteins and fats is still the best.

I think that those people touting the high protein, low carb diet have evaluated it relative to a diet high in substandard carbs – french fries, bagels, corn dogs, pringles, Pop-Tarts, Cracker-Jacks…need I go on? Relative to diets high in processed carbohydrates, yeah, high protein, low carb is way better. But let’s get serious here.

I’ve always said that eating a diet rich in whole, natural foods is best. And it’s important to fill that diet with whole grains, fruits, vegetables, moderate portions of meat, cheese, fish and eggs, and of course, whole, natural fats and oils (avocados, butter, fish) in moderation. Trying to compare a fad diet to one balanced in junk is not going to lead you down the right road necessarily. There is no need to reinvent the wheel. Eat whole, natural foods as you were meant to, and you shouldn’t have any problems.

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