One of the big challenges with seeking truth via external sources is that you tend to find evidence of whatever you're looking for.
For example, on the dental problem issue, I have read stories about dental problems caused by a largely fruitarian diet, but I've also read reasonable explanations of why this happens. Many raw foodists eat a lot of dried fruits and dehydrated foods which stick to the teeth and feed the bacteria which causes tooth decay. These aren't technically "whole foods" anymore because the water has been removed. It's almost like eating candy, and some raw foodists consume a great deal of such foods. That's one of the reasons I'm avoiding dried fruits and dehydrated foods on this diet. I knew about this potential problem before I started my trial and decided to play it safe. Personally I have not read about tooth problems from people who shun dried fruits and dehydrated foods -- I'm not saying there aren't any, just that I haven't seen any yet.
Then there's the other side, where people report dental improvements while on the raw food diet (not always fruitarian though). In the book Raw Family, the author reports that one of her kids saw a major improvement in his teeth after going raw, including having his fillings pop out.
Another problem is that when people encounter health problems on a raw diet (or even a vegan diet), they will often jump to the conclusion that it's caused by the diet, an assumption they don't always make when heath problems occur during more common diets.
Ultimately, truth is a matter of prediction. There are plenty of reasonable predictions for what will happen on a high-fat SAD diet. The predictions for the particular diet I'm on seem to be all over the place though, so I need some direct experience to fill in the gaps as much as possible.
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