• sweetener
Added sugar
Table sugar and added sugars (sucrose = glucose + fructose). Excess intake is genuinely linked to obesity, type-2 diabetes and dental caries, and its fructose half raises uric acid — but stronger popular claims (that sugar is addictive like a drug, or directly 'feeds' cancer) outrun the evidence.
3 well-supported · 4 disputed. This shows how settled each sub-question is, not whether Added sugar is "good." Direction lives in each claim below.
The 7 claims about Added sugar
Each keeps its own verdict — we never average them away.
added sugar causes dental caries
Strong support
added sugar increases diabetes risk
Strong support
Does eating a lot of added sugar raise heart-and-metabolic disease risk?
Leans support The strongest, best-established piece is sugary drinks: sugar-sweetened-beverage intake reliably raises diabetes and cardiometabolic risk (underpinning the AHA limits Lustig co-authored). For TOTAL added sugar the signal is weaker and more mixed — recent dose-response meta-analyses pin much of the harm on beverages rather than sugar per se — so the broad 'limit all added sugar' framing lands at modest support.
Is sugar addictive in people the way drugs are?
Leans against Sugar-bingeing produces addiction-like brain changes in rats, but human evidence that sugar per se meets clinical addiction criteria is weak and contested — what human food addiction exists tracks eating behavior/palatable-food combinations more than sugar as a specific substance.
dietary sugar increases cancer risk
Leans against
Do honey, agave and maple sugar spike blood sugar identically to table sugar?
Refuted No — they are all caloric sugars with broadly similar impact, but not identical: honey and high-fructose agave measurably produce a lower acute glucose spike than sucrose/glucose.
Is sugar uniquely fattening/diabetogenic beyond its calories?
Refuted Sugar especially in beverages robustly raises weight and diabetes risk, but controlled trials show this is largely a calorie effect — isocaloric swaps do not change body weight — so independent-of-calories is not supported for adiposity, though an added-uric-acid pathway remains a live mechanistic hypothesis.
Educational only, not medical advice. Hub descriptions are curated for honesty; see the methodology.