Energy balance
SGLT2 inhibitor-induced glycosuria triggers a compensatory increase in energy intake (hyperphagia) that partially offsets the expected weight loss, resulting in net weight loss significantly lower than predicted by urinary glucose excretion alone.
If you take an SGLT2 inhibitor like empagliflozin, your body will naturally try to regain the calories lost in urine by making you eat more. This biological compensation significantly reduces the amount of weight you will lose compared to what the drug's mechanism suggests. To achieve significant weight loss, you cannot rely on the drug alone; you must actively implement caloric restriction to overcome this increased appetite.
Chronic glycosuria elicits an adaptive increase in energy intake... patients lost only 29 +/- 41% of the weight loss predicted by their glycosuria; the model indicated that this difference was accounted for by a 13% (IQR 12) increase in calorie intake (269 kcal/day [IQR 258])
Why this rating
The study uses a validated mathematical model on a substantial cohort (n=86) with long-term follow-up (90 weeks), though energy intake is modeled rather than directly measured via food diaries.
Source
Energy Balance After Sodium–Glucose Cotransporter 2 Inhibition
Giulia Ferrannini et al. · Diabetes Care · 2015
DOI 10.2337/dc15-0355
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