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. 2026 Jan 27;23:27. doi: 10.1186/s12986-025-01061-5

Fig. 9.

Fig. 9

Non-linear dose-response relations between melatonin supplementation and absolute mean differences. Dose-response relations between duration of intervention (week) and absolute mean differences in a) Fasting Blood Sugar (mg/dl), b) Insulin(µIU/ml), c) HbA1c (%), and d) HOMA-IR