Minsc wrote...
How about the fact that diabetes used to be unheard of, but the original cases can be closely traced back to the time which sugar was increasingly added into food products?
How about the fact that many diabetes patients can completely stop taking medicine, if they go on a low-carb no sugar diet?
As I mentioned, high sugar diets tend to be high in calories, which results in obesity which is considered to be one of two main risk factors for the development of diabetes (the other being genetics).
Saying that sugar causes diabetes because diabetes becomes more common when sugary foods are introduced to a society is like saying that cleanliness causes polio. Sure, polio spread like crazy in the 20th century when there was an increase in emphasis on sanitation, but they aren't directly linked. Polio already existed and could infect people, but it wasn't until a generation with notably weaker immune systems because of a lesser exposure to various bacteria and viruses. Polio became an epidemic because people didn't have immune systems equipped to properly deal with it which was due to increased cleanliness. Cleanliness can lead to a weaker immune system which can lead to an increased risk of polio, but that doesn't mean cleanliness causes polio. In the same way, high sugar diets are often high in calories, high calorie diets increase the risk of obesity, obesity increases the risk of developing diabetes but sugar itself doesn't cause diabetes.
People with diabetes need to be careful about their sugar intake, no doubt about that. People with type 1 will need medication regularly no matter what dietary or other lifestyle changes they make. People with type 2 can generally manage it with diet and exorcise depending on the severity of it. The reason for it being that weight loss can trigger an increase in insulin sensitivity.
I agree that people shouldn't consume too much sugar because it is just extra calories without any nutritional benefit, but it isn't dangerous in moderation. As tsujoi demonstrated with the example of caffeine, just about anything can be dangerous in excess. For example, people can also overdose on plain 'ol water. Too much water can through off the balance in the brain, hindering the electro-chemical process in it. Many people have been put into comas and/or died as a result of drinking ridiculous amounts of water in a short period of time in order to get a high produced by hindering the electro-chemical reactions in the brain.