In the article titled “Antidiabetic Effect of Young and Old Ethanolic Leaf Extracts of Vernonia amygdalina: A Comparative Study” [1], there was an error in the unit of measurement included in the section “2.5. Preparation of Leaf Extract.” Thus, “The leaves were then grouped into young leaves (YL) and old leaves (OL) using the following criteria; length of YL ranges within 5.10–15.50 mm and width within 1.80–7.20 mm and their corresponding weights range within 0.09–1.20 g. Length of OL ranges within 17.70–30.10 mm and width within 7.20–12.90 mm, with corresponding weights ranging within 1.30–5.30 g,” should be corrected to “The leaves were then grouped into young leaves (YL) and old leaves (OL) using the following criteria: length of YL ranges within 5.10–15.50 cm and width within 1.80–7.20 cm and their corresponding weights range within 0.09–1.20 g. Length of OL ranges within 17.70–30.10 cm and width within 7.20–12.90 cm, with corresponding weights ranging within 1.30–5.30 g.”