"Sugar" here means commonly consumed sugars: glucose, fructose, sucrose and HFCS.
Is eating sugar always bad? Can it be eaten in moderation and present no risk to diabetes and other issues? Or should ideally all food be completely without any sugar? Even in a healthy adult of average weight, with no health issues, an otherwise healthy diet and exercise regimen?
I'm aware that the human adult doesn't appear to require glucose consumption, since it can be synthesized within the body: https://www.ncbi.nlm.nih.gov/books/NBK22591/
I'm also aware that the media might promote sugar as a bad thing to consume. However, this seems to be often correlated with people that have other health issues, such as obesity or lack of physical activity.
To answer this I'd like to see a survey paper which presents a summary of the available research on the topic.
I've attempted to figure this out myself, is this paper any good? Does it represent the consensus in the field (if there even is a consensus!)?
The available research appears to be weak in some areas. Consider e.g. regarding cognitive performance deterioration:
"Studies performed ranging in duration from 10 weeks to 24 weeks and employing average levels of consumption of fructose containing sugars have not found any evidence of cognitive change [123,124]."
This wouldn't say anything about changes that might happen over 10 or 20 years of added sugar.
Is there a better survey paper, or perhaps a collection of papers that are interesting?