However, the point is, artificial sweeteners have been around for quite some time, and there haven't been any indications that sweeteners cause cancer. On top of that, there have been numerous studies by the FDA and other organizations in Europe, all coming to the same conclusion. So unless you are implying a lack of credibility in those institutions, I don't see how claiming "sweeteners probably increase chances of cancer" as anything but fear mongering.
Also, you can't really compare the way things were vetted for safety over a century ago to how they are vetted today.
The comparision to vetting safty a centuary ago and now is valid as in 100 years time we will have even better vetting and products in common use today could possibly be banned by the standards in 100 years time. That is also within a humans lifetime (given how long we will be living by then, statisticaly speaking as a trend). So the comparision is whislt not a dierct comparision but one of highlighting how time effects oppinion based upon new data collected over that period. If atifical sweetners still approaved in 100 years time then great, but it is a bet I would not take.
And again, there's just no comparison between the state of science today and the state of science a century ago. For a point of reference, the idea of blinded and randomized trials was a new concept when asbestos first came under suspicion.
The implication that the efficacy of science will improve in the next 100 years comparably to how it did in the last 100 years is spurious. Scientific understanding is being continually refined, but it is not a linear progression. Take the difference between our understanding of the shape of the earth in 800BC vs. 600BC; the model went from a flat earth to a spherical earth. That's a giant leap in 200 years. Then in the next 350 years they nailed down the size of the earth to within about 20% of the true value. An impressive advance, but surely a lesser one. Then, over the next 2250 years, we've gotten a more accurate measurement of the size of the planet, and noticed that it's a bit oblate rather than a perfect sphere. As science advances, the rate of progress slows; that's just how it works.
Fact the FDA has banned unbanned and rebanned and unbanned so many of these artificial seetners that even they over time you can see why people are so unsure becasue historicaly that is how they have been themselfs. I also stated I drink diet soft drinks which contain them, my choice so you can see that fear mongering is realy my main agenda, clearly.
Now if a institution changes it's mind more than once, I'm sure some aspect of there crdibility is in question. I live in the UK said products have warning and given that, I have resonable doubts about them being 100% safe in every aspect of use, but it is an acceptable risk and may or may not even be a risk at all, we just don't know.
I'm not saying there bad, I'm not saying there good, there have been some that currently appear to do no harm and some that are stilll banned or withdrawn from market historicaly, there are many types of artificial sweetners, some are currently banned some are currently allowed and in that when I say they are probably just as bad as sugar then that is exactly what I mean, there is no 100% prove either way that they are not are that they are, they could be less bad than sugar and they could be alot worse, sorry I didn't quantify it with exact brands but if anybody knew the exact answear then great, but they don't so I excersise resonable doubts.
Until somebody can clearly state that artificial sweetners are safer than sugar overall with regards to health then the debate will always carry on.