Tuesday, May 4, 2010

Carbs...What's to Them, What Do They Do?

I am including this article off of Mark's Daily Apple, a blog I follow. If you are considering a primal or paleo way of eating, please read on to what he has to say about how our current eating (ie. the way we've always learned...."balanced diet", the food on the food pyramid, etc.) is affecting our bodies. As Mark put it in this week's post: "We do know that inflammation, especially chronic, systemic inflammation seems to be involved in nearly every disease under the sun. Obesity, cancer, heart disease, autoimmune disease – if it’s killing people, increasing health care costs, and reducing quality of life, inflammation is bound to be involved at some level. That makes things easier, in my opinion, because we have a good idea how to avoid chronic inflammation, and that should take care of half the battle. Avoid sugars, grains, legumes (that includes peanuts), and processed vegetable oils. Eat lots of healthy animals and their fat, along with vegetables, and fruits and nuts on occasion. Get plenty of sleep. Exercise and keep chronic "cardio" to a minimum. Get regular sun and don't stress."






What Happens to Your Body When… You Carb Binge?


Carb BingeAnother day, another co-worker’s birthday (and the obligatory cake in the break room). Elaine Benes was right: this is insanity.

You’re into the Primal style of eating, so it’s easy to resist this stuff, right? You ignored the dirty looks when you turned down that piece of fudge-smothered bundt cake offered by your boss’s wife at their employee open house. You don’t mind gnawing on the few anemic carrot sticks left at the annual holiday party. Dessert just isn’t part of your vocabulary.

But would it hurt to indulge this once? This guy’s birthday? Well, you like him well enough, and the cake is a lemon cream after all. And it’s the end of the work day. Seriously, it’s not like you’ll suddenly burst into flame and melt in a fiery, torturous death, leaving nothing but a smoldering spot on the carpet. You’re disciplined. You can more than make up for this later. The worst that can happen is a sugar rush, and you spent half your time at summer camp walking (well, running) around in that state. Those were good times. Oh what the heck, gimme a slice. Yeah, sure, a little ice cream too.

So, what will happen? To your body, we mean. Once the plastic fork (with its spongy contents) hits your mouth. What goes on in there anyway? And why are you suddenly thinking of Willy Wonka and that kid who gets sucked down the garbage chute?

First off, the good news. There’s no purple suited man to pull an ominous lever. Nor is there any other permanent fate awaiting you. You’ll leave work a live, generally functional human being. They’ll be no curse or pox on your house or even truly long-term risk elevation for that matter. Nonetheless, you’ll likely regret your decision.

Within a matter of 10 quick forkfuls, you’ve gone from small doses of quality carbs wisely spread throughout the day to possibly 100 or more grams of pure sugar in one sitting. O.K., some guilt is setting in…. But that’s not all that’s happening.

The Domino Effect

Domino Effect

Within a few minutes, your pancreas kicks into overdrive and sends out a flood of insulin to try to sop up all the excess glucose that’s suddenly rushing through your bloodstream. Remember, while glucose is muscle fuel when it’s in the muscles, it’s toxic sludge when it stays in your bloodstream. Your body knows that and does everything it can to get it out of there. Perhaps you’re feeling flushed, a little high, spastic, or nauseous depending on how much you ate, how big you are, what your normal carb load is, and how acutely you tend to “feel” the effects of sugar and other substances. Ironically, if you were insulin resistant, you might not even notice these sensations, but you’re not. You’re a clean-fuel-burning primal specimen.

And it continues. The gush of insulin now creates a see-saw effect. If your glycogen stores have room, some of the sugar goes into muscles. If there’s no more room, the excess goes into fat cells, where it is stored as fat. In reaction to this quasi-emergency that looks like another life-threatening stress, the body steps up its efforts to achieve homeostasis by releasing both epinephrine (adrenaline) and cortisol from your adrenals. Your heart is racing, and you’re starting to feel uncomfortable, maybe even sweating. And we’re still likely within the first hour after you finished off that cake!

A bit more time passes. Burnout settling in yet? That’s called a sugar crash – when all the glucose is gone from the bloodstream and you start to feel sluggish, off-kilter, like the internal circuits are all fried after sparking in a heap of now smoldering wires. Hmm. Maybe that spontaneous combustion image wasn’t so far after all.

But there’s more…. The havoc that sugar rush set off – the swing of glucose and insulin, the cortisol and adrenaline – they’ve sent your immune system into a tailspin. Research has shown that the function of immunity-related phagocytes is impaired for at least five hours after intake of simple sugars. Free radicals have their heyday as well within the first few hours after sugar increases oxidative stress on the body. Your blood even thickens as a response to the stressors.

Wait, you aren’t out of the woods yet. You get home and try to sleep it off, but you toss and turn as your heart continues to beat faster than normal. Hmm. Little surprise there. The old hormonal system is confounding in its interconnectedness. You lay there cursing not just that cake but the entire cultural custom of birthday celebration. As the sun comes up and you roll out of bed, you think you should be done with this sugar business by now. Maybe. Maybe not. Unfortunately, a hefty dose of sugar can compromise the immune system for more than 24 hours. Groan. The images flash before you. The flu your daughter brought home earlier this week. The miserable cold (that incessant cough!) your boss has. Passing plans or reports around the meeting room. Shaking hands with the new clients who came by yesterday. Your toddler’s insistence on drinking from your cup last night. Suddenly you’re seeing your week in a new (and dimmer) light. Your immune system might have handled it all quite easily before the sugar incidence/insult. That’s one birthday cake that keeps on giving!

As bad as this sounds, it could be worse. If you follow the Primal Blueprint regularly and the lemon cream was just a detour, you’re a generally healthy person. You’ll experience the effects, and you may feel them more acutely than you did before you chose the low-carb path. (This isn’t a bad thing.) Nonetheless, after the dust settles, the worst thing you can end up with is maybe a cold you wouldn’t have gotten otherwise. Your system will realign itself pretty readily. Within a couple of PB style days you’ll be as good as new.

But if this is a normal day? Sigh. This presents a much bleaker picture. That see-saw of insulin and glucose? The process breaks down in your body until you develop insulin resistance. That rush of adrenaline and cortisol? That hormonal havoc over time fries your adrenal system. Your body is constantly in a state of “fight,” and inflammation becomes a constant state of affairs. Enough sugar over enough time (with the lack of exercise to boot), and you’ve gotten yourself into quite a pickle. (Maybe a pickle would’ve been a better snack choice….)

The Primal Blueprint offers up a plan to help guide our everyday choices as well as information to help us weigh the compromises we choose to make along the way. How we take care of ourselves each and every day can ameliorate the more taxing damage from occasional concessions we make for personal and social reasons.

And so we conclude the Willy Wonka journey.

Willy Wonka


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