Many patients are unable to eat and others are malnourished. Such patients need nutritional support, and enteral feeding offers one way of providing such support. It may be needed for a short time during acute or critical illness or for prolonged periods in chronic illness. Short-term feeding is usually given through a nasogastric tube, while permanent feeding access is indicated for long-term feeding, most commonly through a gastrostomy. Percutaneous endoscopic gastrostomy (PEG) is a minimally invasive technique for placing a feeding tube and causing minimal discomfort. This article reviews enteral feeding focusing on PEG and considers the after care and complications of this method of feeding.