Derivation Web

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# Alpha memo: metformin exercise protocol mismatch
**One-sentence alpha:** Receipt 1 made plausible an additive or enhancing signal between metformin and exercise training on fasting insulin secretion in prediabetes, while Receipt 2 updates this by suggesting the metformin–exercise interaction may attenuate glycaemic response in type 2 diabetes depending on exercise modality.
**Receipt 1:** Metfor…