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With Great Freedom Comes Great Responsibility: The Safety of Sugar Free

I like to think that I eat fairly healthily, especially compared to the norm. I try to keep my carbohydrates low, eat plenty of vegetables, and always have a bottle of water handy.

There is one questionable substance I allow myself without restriction, however: sucralose. I’ve realized this lately, and am attempting to cut down, but it’s made me curious about just how dangerous fake sweeteners are.

Most Americans and Europeans regularly consume “fake” sweeteners on a regular basis, either on purpose (in baking, coffee and tea) or unintentionally (in reduced fat foods, and even some medications). They’re a welcomed loophole for those looking to lose or maintain their weight, and keep their blood sugar stable. But are they safe?

It Causes Cancer! … It Might Cause Cancer! … Male Lab Rats Are Prone to Cancer!

It seems that the best argument those who oppose sweeteners have is that aspartame, saccharin, and sucralose are all carcinogenic–they cause cancer. But do they really?

The newest study to come to light was in June of 2013, when Italian scientist Dr. Morando Soffritti fed male lab rats “varying” levels of sucralose throughout their lives. This study is still under peer review, and has caused quite a bit of controversy in the scientific community.(1) It contradicts the 2000 study which concluded that the substance posed no threat. Both studies were carried out on lab rats over a significant portion of their life span.

The scientific community, so far, is disregarding this study as “bad science,” however. Read the full story here. It seems that this Dr. Soffritti has been under review by his peers for less than perfect performance in the past, so for now, the consensus is that sucralose is safe for consumption.


This is only the most recent of many almost identical situations for artificial sweeteners. In the 1970s, the oldest sweetener, saccharin, came under fire when scientists found that lab rats fed the substance developed bladder tumors. Upon further investigation, it was discovered that the specific way rodents metabolized saccharin was causing the problem, and that humans would not suffer the same consequences. Warning labels were removed from Sweet’n’Low and Sugar Twin by 2000.

Conversely to the accusatory studies, University of Adelaide researchers released findings that shows that the gut’s reaction to sweetener is neutral. “In our most recent study involving healthy men, we found that the gut’s response to artificially sweetened drinks was neutral – it was no different to drinking a glass of water,” the researcher added. (2)

What About Natural No-Calorie or Low-Calorie Sweeteners?

When you think of “natural low calorie sweetener,” how many of you think of Stevia? Oh, looks like most of you.

Unfortunately, it looks like Stevia is actually worse for you than any chemical sweetener–though nobody is going to drop from this chemical. The compounds in this shrub, which has been consumed for centuries, break down in humans’ guts to steviol, which is slightly toxic. Dr. Berger explains this much better than I could:

Erythritol, however, seems to be the one golden angel of the bunch. This chemical has never been accused of being harmful–in fact, it’s only fault is being a sugar alcohol. No, it doesn’t get you drunk; being a sugar alcohol means that a fair amount of the population (about 40%) will get a blood sugar spike from consuming it, though smaller than if they were consuming regular sugar. Also, all sugar alcohols (xylitol, maltitol, and sorbitol are some of the more common ones) cause many consumers intestinal discomfort, so make sure you keep track of how much you eat in one serving, and per day, or you may be in for a bad time.



So What Am I To Nom?

Because artificial sweeteners are still under review, it’s hard to say what the future brings. However, at this time, it looks like all commercially available low or no calorie sweeteners are safe for consumption–in moderation. Keep track of how much you eat a day, and take note of any weird symptoms or discomfort. Your body will tell you what’s best!


What sweetener do you use?

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