Sunday, August 15, 2010

Artificial Sweeteners - They are, and they aren't.

Over the past year and a half, I've pretty much stopped drinking things that have added sugar of any kind. I'll still grab a little OJ with breakfast sometimes, but otherwise I even avoid most fruit juices. In that time, I've pretty well adapted to drinking things that aren't sweet, but once in a while I still miss the flavor. So I decided to try some of the artificial sweeteners, just to see what might work.

Mostly: Ugh. "Artificial" is definitely the word in the majority of cases. I tried Splenda, Stevia, plain old saccharine (though I pretty much knew it would be a Fail), and a couple of the boutique blends, as well as some commercial products containing things that aren't readily available by themselves. There wasn't any point in trying aspartame (a.k.a. Nutrasweet) because I have known for years that even small doses of that stuff leave me with a raging headache in short order. (Oh, and since Monsanto's patent has finally expired, it can be listed under new names as well; beware.) Various websites in the US and elsewhere have reported on the facts about aspartame adequately enough that I won't go into them here; suffice it to say that I wouldn't feed it to the roaches under my neighbor's trash can. (Okay, I might, but I don't think roaches are likely to eat the stuff.)

But that still left me with the rest.

Splenda (the most common brand name used for sucralose) is currently first and favorite among the people who want their sweet tooth polished without sugar or aspartame. The packages proudly proclaim that it tastes like sugar because it's made from sugar. The chemical process involved in the conversion is such that this is akin to claiming that potassium-based salt substitute tastes like hydrochloric acid...and in my estimation, is about as accurate. Splenda's flavor is sweet-ish, like all of the artificial sweeteners, but it has an even more persistent aftertaste than average, and though some find that it is the closest to actual sugar from among the readily-available alternatives on the market, I feel that this is like saying Boston is close to New Hampshire. (By comparison to Atlanta, sure, it is...but that doesn't make it close in absolute terms.) After trying both the sweetener itself (in things of my own concoction, such as tea and limeade), and a variety of commercially-produced beverages and drink mixes containing it, I concluded that I'd prefer to avoid it.

Some beverage mixes and commercial drinks blend sucralose with another sweetener, acesulfame potassium. I was unable to buy Ace-K (as it is reportedly called) separately, so all I can report is that it failed to make sucralose dramatically more palatable. The strongly-artificial sweetishness and long-lingering aftertaste remained, though the initial hit on the tongue was slightly less jarring. Conclusion: Still worth avoiding.

Saccharine has been around for ages; it proved no more pleasant today than it did when I was a kid in the late '50s and early '60s. No surprise here.

Next up was Stevia in its many guises and combinations-with-other-things. Once again, the pure form is more sweetish than sweet, and it has a peculiar mint-like aftertaste that I find unpleasant. The brands which mix it with other sweeteners have varying levels of success in improving palatability in my estimation, but none rose to the level of something that I could actually say I liked. Score: Only tolerable if there was some strong reason to need to mask something INtolerable...in which case, the intuitive move would seem to be avoidance of both, no?

Then there's the class of things known as "sugar alcohols", including xylitol, mannitol, sorbitol, and maltitol (among others). Despite being classed as alcohols, they are neither capable of producing intoxication nor do they exist as a liquid at room temperature. Getting the pure form of any of them in convenient quantities isn't easy or cheap; a few boutique-level suppliers carry some of them in small packages, but for the most part they're used as ingredients in finished products instead. If you want a truckload, no problem. They all share several characteristics. First, for the most part, they don't taste all that artificial, which might be a good thing. Second, they are NOT calorie-free, but their effects in the body are far less than that produced by glucose or fructose; as a result they are sold for use by diabetics on this basis in some areas. Third, they all tend to have a laxative effect if overconsumed, as is warned on the labels of many products that contain them (including a couple of fairly decent-tasting ice-cream-substitute products from Breyer's and Dreyer's). Although it has been reported that one eventually adapts to their presence, and can achieve a reduction in the associated problem, I'm not sure now much of such disruption I want to accept in exchange for the privilege of being able to consume larger quantities of something that's sweet but still has caloric content. I will not, however, avoid these when encountered, as long as the amounts involved are fairly small.

The bottom line, for me, seems to remain mostly unchanged. Although I've found a few sweetened-without-sucrose/fructose/HFCS products that I find acceptable, I'll stick with unsweetened for the rest.

A side note: I've run across research which indicates that the body may exhibit a pre-adaptive reaction to encountering certain sensory input, specifically smells and tastes; the reaction in question prepares the digestive system in anticipation of food, and enhances hunger. It operates by stimulating a rise in the insulin level in the blood when sweet tastes or certain smells are detected, so that the presumably expected sugar can be processed right away. One of the other effects of rising insulin levels is a shutdown of the lipid cycle, which causes fat to cease to be pulled from storage for use as fuel; this shutdown is part of what makes you hungrier as you begin eating a meal. If this observed reaction to taste sensations is common, there is reason to avoid causing it if one is trying to control or reduce weight; anything that stops the lipid cycle is working against the system that uses fat from storage to fuel your body. And in particular, given that sensory input may not always distinguish between fake sugar and real sugar, it seems that there is cause to suspect that this insulin release could be happening when you consume artificially-sweetened foods or beverages that are otherwise calorie-free. In that case, the insulin release will block out the fat-for-fuel mechanism, but there won't be any sugar coming in to use up the insulin or to provide alternate fuel, so you'll end up starving yourself while NOT losing weight. (Several years ago, I remember seeing other research which indicated that diet sodas had the effect of increasing hunger, but I don't recall if they established the mechanism involved, and it's possible that the same actual effect may have been observed in both studies.) Of course, without more specific research to confirm the effect and determine its severity and full implications, the potentially counterproductive nature of artificial sweeteners in this area remains at least partially conjecture at this point...but it's conjecture based on observed results, not just something pulled out of thin air.

Back in the '60s, there was a cola-wars ad in which one of the major brands had a fake Russian saying "Put water in mouth, is sufficient!". All in all, I have to say that this is probably the best advice available, though I'll continue to leaven mine with a dash of lemon or lime, thank you.

Wednesday, August 11, 2010

Unsweetened, please.

Back in December of 2008, faced with a waistline that had slowly expanded to the point that I was on the verge of either developing an overlap or buying new pants, I decided that the time had come to shed some excess pounds. I knew that the process would not be easy; although I'd been able to tolerate the kind of self-starvation regime that's usually promoted by our benighted medical and nutritional establishments for such purposes, I was less than thrilled about doing it. Instead, I decided to engage in an intuitively attractive alternative.

I stopped consuming anything that contained high fructose corn syrup, and reduced my intake of sugar in other forms as much as was easy and simple. Period. No sudden increase in exercise, no counting calories, no rice-cake-and-low-fat-cottage-cheese lunches, no prepackaged meals of questionable virtue, NOTHING ELSE out of the ordinary.

And in the following 9 months to a year, I dropped about 30 pounds, slowly and painlessly.

Along about that time, a friend of mine (who'd been afflicted with a multitude of ailments that caused him to be on a daily diet of pharmaceuticals that would have bankrupted someone with my income) was diagnosed with the early stages of diabetes. The immediate response of his physician at the time was to prescribe yet more drugs in addition to those that he was already taking...and when he looked up their side effects in the Physician's Desk Reference, he had a fit. The stuff was next to deadly. After confirming his suspicions via second and third opinions rendered by professional contacts he trusted, he went looking for a new doctor...and found one whose approach to the situation, after reviewing *all* of the meds he was on, was to stop all of them and let his condition stabilize before evaluating which, if any, of the meds would be continued. To control the effects of the diabetes in this period, a limit of 30 grams of total carbohydrate intake per day was imposed. (Before the discovery and synthesis of insulin, this was the only practical treatment for diabetes...and it worked just fine for most.)

If you've never tried to limit your carb intake, I will point out that the bun for a typical hamburger has more than 30 grams of carbs. If you've ever shopped for low-carb prepared food items in most of the parts of a typical grocery store, you'll understand why meeting his new limit was not easy, but it wasn't something my friend felt that he had a lot of choice about, so he started eating a lot more meat and non-starch vegetables. To his immense surprise, in a couple of weeks, it was like he was a different person. Nearly all of his long-term maladies had either vanished or dropped in severity to a tolerable point and were still abating. He'd started losing weight (something he'd never been able to do previously at all) and his stamina and appearance had both improved. The change was remarkable...and although he was sure that the cessation of all of the conflicting drugs had played a large part in the changes, he was still very curious indeed about just what part the low-carb diet might be playing.

What he found out was enlightening, infuriating, and promising.

It was enlightening because he discovered that the low-carb lifestyle was neither hazardous nor unhealthy, as was loudly proclaimed by certain parts of the medical establishment, and was, in fact, far healthier overall than the dietary regime that was followed by anyone who adhered to the "official" guidelines.

It was infuriating because he discovered that there was a large, powerful and entrenched establishment within the medical and nutritional fields which refused to accept the valid, persuasive and conclusive research that demonstrated the fallacy of promoting a high-carb diet (such as the one he'd been following unintentionally for decades) as being healthy in any regard.

And it was promising, at a personal level, because some of the the results he'd already seen appeared to be just the tip of a beneficial iceberg that had been appearing through the fog of misinformation as he delved deeper into the subject.

When I related to him that I'd been able to shed much of my excess weight via the simple expedient of nixing everything that contained HFCS and a lot of sugar, he was understandably not surprised. Over the subsequent months, he shared some information he'd collected along the way which caused me to add starches to my proscription list, and which persuaded me to increase the amount of fatty meats I consumed. My weight loss accelerated, and other benefits started to appear. My stamina improved, my allergies became less troublesome, and my blood pressure (which had been a bit high, but never dangerously so) started to fall back very slowly.

When I started this, I weighed over 210 lbs, which was far from being considered obese for someone who's 6'3" tall. Today, I appear to have stabilized at around 163 lbs, I have lost 5 inches off my waistline, and I feel much better on a daily basis than I did when I was carrying the extra pounds around. By many standards, I am now considered underweight for my height. Well, the folks who think so can just keep their opinions to themselves. This is working really well for me, and I'm sticking to it.

Meanwhile, for anyone who's actively curious about the subject, I can heartily recommend "Good Calories, Bad Calories" by Gary Taubes as a long but exceptionally informative read that covers not only the facts and the history of how we got into the dietary mess we're in, but why there's so much information around which is dead wrong...and what that misinformation is still causing as a result.