Nutrition: Small Appetite and Unintentional Weight Loss Download "Are You Losing Weight? (Poster)", 676KB, PDF Download English PDF, 9.21MB, PDF Download Chinese PDF, 672KB, PDF A small appetite occurs when you eat lesser due to ageing or being unwell. Unintentional weight loss occurs when you lose more than 3kg in a span of 3 to 6 months.Read on to find out how to identify if you have a small appetite and unitentional weight loss and what you should do. [Please download the PDF file if you are unable to view the image below.]