I stumbled upon this talk by Dr. Robert Lustig who makes a very interesting point about sugar, fructose in particular, being the main cause of evilness like heart disease, obesity, diabetes and others including inflammation.
In a nutshell he says it isn’t fat that makes us fat but sugar. According to him, a calorie is not just a calorie, especially not if it comes from fructose because of how the body metabolises fructose — basically storing huge amounts of fat and effectively poisoning your liver and messing up your entire metabolism. It’s important to add that fructose in fruit and vegetables doesn’t harm you in this way as it is present in small quantities and accompanied by plenty of fiber, which is key, says Dr. Lustig.
Alan Aragon has written up a great response/ rebuttal to Dr. Lustig over at his blog. His main point is that it’s all about dosage and Lustig’s alarmism will have people going sugar-free for no good reason. I think Alan is right about dosage, but just how much sugar are we consuming nowadays? I think the safe dosage is probably being exceeded by far. Either way, his post is worth reading.
Dr. Lustig’s talk is embed here. You can find a simplified (and much shorter) version here but I’d encourage everyone to watch the full video below.