References
Sources
Every threshold, formula and statistic in Dulceo and on this site comes from a published reference. Your clinician interprets your results — these are the sources we display for education.
Reference ranges
American Diabetes Association — Standards of Care in Diabetes
The A1C and fasting glucose reference ranges shown in Dulceo's calculators and charts: A1C below 5.7% / 5.7–6.4% / 6.5%+, and fasting glucose below 100 / 100–125 / 126+ mg/dL. Shown for education — how your numbers compare is a conversation for you and your clinician.
Research
Diabetes Prevention Program Research Group — NEJM, 2002
The landmark study behind the habits Dulceo focuses on. In the Diabetes Prevention Program study, people who lost 5–7% of body weight and got ~150 minutes of weekly activity reduced their risk of developing type 2 diabetes by 58% (71% for adults over 60). These are population-level findings, not individual predictions.
Risk quiz
CDC Prediabetes Risk Test
The questions and scoring used in our risk quiz come directly from the CDC's published Prediabetes Risk Test. The score is a screening awareness tool — it tells you whether a conversation with your clinician is worth having, nothing more.
Formula
NGSP / ADA — estimated average glucose (eAG)
The conversion Dulceo uses to translate an A1C percentage into an estimated average glucose in mg/dL: eAG = 28.7 × A1C − 46.7. Published by the NGSP and the American Diabetes Association.
Reference ranges are shown for education — not a diagnosis.
Spotted something out of date, or a reference we should add? Write to support@dulceo.app — we're glad to correct it.