Undernutrition remains a major public health concern, especially in developing countries. Despite being rich in resources, Malaysia is still home to children sufering from severe undernutrition. Tis paper presents the case of a 5-month-old boy with kwashiorkor stemming from improper weaning which was overlooked. Tis case highlights the importance of recognizing the early signs of kwashiorkor to allow for early referrals for proper management and prevent its possible complications.