Could it be that the obesity epidemic that has developed during the last couple of decades is due at least in part, to the widespread use of artificial sweeteners? This is just my opinion, but IMO, it certainly could be true. Consider this:
Yes, you read that right - that's true. No one has ever proven that the use of artificial sweeteners is less likely to cause weight gain, than the use of sugar. Not only that, but it would seem to be a no-brainer that if weight loss from artificial sweeteners could be proven, surely some manufacturer of artificial sweeteners would have done so by now, and they would be parading that information before us on a regular basis, in tv ads, magazine ads, all over the internet, etc., and yet, curiously, that has never happened. Hmmmmmmmmm.Curiously, not one single randomised controlled trial assessing effects of artificial sweeteners on weight is to be found in the scientific literature.
The red emphasis is mine, of course.Also, there is some evidence, albeit in animals, that suggests artificial sweeteners might actually contribute to obesity. In one study, rats were fed with either saccharin or sugar-sweetened yoghurt in conjunction with their normal diet [1]. Compared to those eating sugar-sweetened yoghurt, the rats eating saccharin-laced yoghurt consumed more calories and got fatter too. The authors of this study concluded that, “…using artificial sweeteners in rats resulted in increased caloric intake, increased body weight, and increased adiposity [fatness]”, adding that “These results suggest that consumption of products containing artificial sweeteners may lead to increased body weight and obesity by interfering with fundamental homeostatic, physiological processes”.
One potential explanation for this phenomenon relates to the ability of artificial sweeteners to stimulate the appetite. There is some evidence, for instance, that artificial sweeteners might do this through effects on the brain. In one study, women were given a solution containing either the artificial sweetener sucralose or sucrose (table sugar) [2]. The women were unable to distinguish the source of the sweetness on the basis of taste. However, it seems their brain knew the difference: sugar activated ‘pleasure centres’ in the brain more than sucralose. It seems an artificial sweetener may simply not give the level of pleasure and satisfaction derived from sugar. This, in theory, could lead individuals to seek satisfaction from other foods (i.e. eat more).
Some evidence shows that artificial sweeteners have the ability to stimulate the appetite. For example, one study found that women given saccharin-sweetened lemonade were found to consume considerably more calories overall compared to those drinking regular (sugary) lemonade [3]. In another study, experimenters found that subjects who had eaten yoghurt sweetened with saccharin were inclined to eat more than those who had eaten yoghurt sweetened with sugar [4]. There is other evidence which suggests that aspartame, too, has the capacity to stimulate the appetite [5]. Sugar-sweetened foods are far from ideal, but it does seem that artificially-sweetened ones are simply not a good alternative.
Hmmmmmmmm again.
As Dr. Briffa points out:
http://www.drbriffa.com/2011/07/14/obes ... weeteners/One other issue that I have with artificial sweeteners, even supposedly healthier and more natural ones such as stevia and xylitol, is that they perpetuate the expectation and ‘need’ for very sweet tastes. That’s a dependence I encourage people to lose.
Note that Dr. Briffa is not claiming that artificial sweeteners are responsible for the obesity epidemic, (that observation is my own theory), but the points that he has raised in that article certainly add support to my contention, (IMO).
As the punch line from the old Chiffon margarine commercial goes, "It's not nice to fool Mother Nature".
Tex

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