Perché il glucosio conta
L’insulino-resistenza si sviluppa per anni prima che un esame del sangue la rilevi. Queste guide spiegano che cosa succede, che cosa un sensore può mostrarne e che cosa no, e dove finiscono le prove. Ogni affermazione dichiara quanto è solida l’evidenza e cita lo studio da cui proviene.
Scritto a partire dalla ricerca, non attorno alla tesi di qualcuno. I ricercatori compaiono solo nella bibliografia, e dove il campo è davvero diviso lo diciamo invece di schierarci.
Come leggere le etichette dell’evidenza
Ogni affermazione di questa pagina porta un’etichetta che indica quanto peso può reggere. Descrive la solidità del risultato, non il prestigio della rivista.
- Evidenza solidaUn grande studio randomizzato, una coorte seguita a lungo, o la concordanza di più studi.
- Evidenza preliminareReale, ma sottile — piccolo, breve, osservazionale o non ancora replicato.
- ControversoRicercatori competenti sono apertamente in disaccordo. Non scegliamo noi da che parte stare.
Guide
- What insulin resistance is, and why it starts before diabetes
Insulin resistance is your cells responding poorly to insulin, so your body makes more of it. Blood glucose can stay normal for years while this happens — which is exactly why it goes unnoticed.
3 × Evidenza solidaAggiornato 2026-08-07
- Glucose versus insulin: what a CGM does not show you
A continuous glucose monitor measures glucose in the fluid between your cells. It does not measure insulin. That gap decides what a normal-looking week can and cannot tell you.
2 × Evidenza solidaAggiornato 2026-08-07
- How to read your own glucose curve
Peaks, area under the curve, and the overnight baseline each tell you something different. Here is what a trace can support, and where people routinely over-read it.
3 × Evidenza preliminareAggiornato 2026-08-07
- What the evidence actually supports for people without diabetes
The honest summary: strong evidence in diabetes, reasonable grounds in prediabetes, and thin evidence that a sensor improves health in people who are already metabolically healthy.
5 × Evidenza solida2 × Evidenza preliminareAggiornato 2026-08-07
- Time in range, and why it beats a single number
Time in range is the share of the day your glucose sits between 3.9 and 10.0 mmol/L. It carries information that an average cannot, and it has been validated against real complications.
4 × Evidenza solidaAggiornato 2026-08-07
- CGM accuracy: what MARD means, and what it hides
MARD is the average gap between a sensor and a laboratory blood test. It is the standard accuracy figure, it is genuinely useful, and it is routinely compared between studies that cannot be compared.
1 × Evidenza solida1 × Evidenza preliminareAggiornato 2026-08-07
- Food, movement, sleep and stress: what actually moves the curve
Four inputs change what a sensor shows you. The evidence behind them is not equally strong, and the one with the best evidence is the one people expect least.
1 × Evidenza solida5 × Evidenza preliminareAggiornato 2026-08-07
- Prediabetes: the window where a sensor earns its keep
Prediabetes is the stage where the numbers have moved but the outcome is not settled. Roughly as many people return to normal as progress — and what decides it is well established.
5 × Evidenza solidaAggiornato 2026-08-07
- Who should not bother with a CGM, and what to do instead
Some readers will get nothing from a glucose sensor that a cheaper test would not give them. Some need a different device from the one they are about to buy. Both are worth saying plainly.
3 × Evidenza solida2 × Evidenza preliminare1 × ControversoAggiornato 2026-08-07