What Is a Feeding Tube? A Plain-Language Guide

Last verified: October 6, 2026. A feeding tube, in the sense most people mean when they search for the term, is a flexible tube that delivers liquid nutrition, fluids, and sometimes medication directly into the digestive tract of a person who cannot eat or drink enough by mouth. The medical name is an enteral feeding tube. This guide covers what a feeding tube is, who uses one, the main types and routes, how it differs from related equipment, and why the device matters to the people who budget for, stock, and audit clinical supplies.

This page is general information, not clinical or safety training. Always follow your institution’s procedures and the manufacturer’s instructions for any device.

What Is a Feeding Tube?

A feeding tube is a narrow, soft tube, usually made of silicone or polyurethane, that carries nutrition past the mouth and throat and straight into the stomach or small intestine. “Enteral” simply means “through the gut,” and the word is used to separate this approach from parenteral nutrition, where nutrients are given directly into a vein. Because the digestive system is still doing the absorbing, enteral feeding is generally preferred over intravenous feeding whenever the gut works but swallowing, appetite, or intake does not.

The tube itself is only one part of a small system. A typical enteral feeding setup also includes a connector or port on the tube, a way of delivering the formula (a syringe, a gravity bag, or a pump), the formula container, and a set of accessories for flushing and securing the tube. People often say “feeding tube” to mean the whole arrangement, but procurement and clinical staff usually treat the tube, the delivery set, and the formula as separate line items.

Why Feeding Tubes Exist

Eating is a surprisingly demanding task. It requires appetite, coordinated chewing and swallowing, a protected airway, and a digestive tract that moves food along. When any link in that chain fails, the person risks malnutrition, dehydration, or food and liquid entering the lungs. A feeding tube bypasses the failing link. It does not replace a healthy gut; it gives a working gut a reliable way to receive nutrition when the mouth and throat cannot do the job safely or sufficiently.

Who Uses a Feeding Tube

Feeding tubes are used across a wide range of care settings and ages. Common groups include:

• People with swallowing difficulties (dysphagia), for example after a stroke or with certain neurological conditions.
• Premature or medically complex infants and children who cannot take enough milk or formula by mouth to grow.
• Patients in intensive care who are sedated or on a ventilator and cannot eat.
• People with conditions affecting the head, neck, or upper digestive tract, including some cancers and their treatments, where eating is painful or unsafe.
• People with severe, prolonged loss of appetite or intake from advanced illness.

The care team decides whether a tube is appropriate, which type to use, and for how long. That decision is individual and clinical, and it sits well outside what a general guide can advise on.

Types of Feeding Tubes

Feeding tubes are usually grouped by how they enter the body and where the tip ends up.

Tubes Placed Through the Nose

These pass through a nostril, down the throat, and into the digestive tract without any surgical opening. They are generally used for shorter-term feeding, often measured in weeks rather than months. The common variants are named for where the tip sits:

• Nasogastric (NG) tubes end in the stomach. See our guide to the nasogastric tube for more.
• Nasoduodenal and nasojejunal tubes end further along in the small intestine, which is sometimes chosen when the stomach cannot be used safely.

Tubes Placed Through the Abdominal Wall

For longer-term feeding, a tube may be placed through a small opening in the abdominal wall, directly into the stomach or small intestine. These are usually called gastrostomy tubes (into the stomach) and jejunostomy tubes (into the small intestine), and are often referred to by shorthand such as “G-tube” or “J-tube.” Placement is a procedure carried out by clinicians. Some are long tubes that extend outside the body, while others are low-profile “button” devices that sit nearly flush with the skin and connect to an extension set only at feeding time.

How the Formula Is Delivered

Whatever the tube type, the formula can be given in different ways:

• Bolus feeding delivers a measured amount over a short period, often using a syringe or gravity set, similar to a regular meal.
• Continuous or intermittent pump feeding delivers formula slowly and steadily through an electronic enteral feeding pump.
• Gravity feeding uses a bag hung above the person and a roller clamp to control the rate.

Choice of method depends on the individual’s tolerance, condition, and care setting, and is a clinical decision.

Parts and Supplies Around a Feeding Tube

The tube is only the beginning of the supply list. A feeding program usually involves several categories of item:

• The tube or button device itself, in a range of sizes and lengths.
• An administration set (the tubing and container that carries formula) for pump or gravity feeding.
• Enteral syringes for flushing and for bolus feeds. These often use connectors designed to be incompatible with intravenous connectors, so that a feeding syringe cannot be attached to an IV line by mistake. Our guide to the syringe covers the general device.
• Enteral formula, which comes in many compositions for different nutritional needs.
• Securement and skin-care products such as dressings and fixation devices.
• Where used, an enteral feeding pump and its dedicated sets.

How a Feeding Tube Differs from Related Equipment

• Feeding tube vs. nasogastric tube. A nasogastric tube is one kind of feeding tube, but it is also used to remove stomach contents, so it is not always a feeding device.
• Feeding tube vs. intravenous (parenteral) nutrition. A feeding tube uses the digestive tract. Parenteral nutrition bypasses it entirely and goes into the bloodstream, usually through a central line, and is a different clinical pathway with different risks and supplies. Fluids for IV use are normally supplied in an IV bag.
• Feeding tube vs. endotracheal tube. An endotracheal tube goes into the windpipe to support breathing, not the digestive tract. The two can be in place at the same time in an intensive care patient.
• Feeding tube vs. drainage tube. Some tubes carry fluid out of the body rather than into it. A feeding tube is defined by the direction of flow: nutrition goes in.

Practical Relevance for Research Administration and Procurement

For readers who manage supplies, budgets, or compliance rather than patient care, feeding tubes raise a few recurring practical points.

First, the product family is broad. A single “feeding tube” line on a requisition can hide very different products: short-term nasal tubes, long-term abdominal-wall tubes, low-profile buttons, extension sets, syringes, and formula. Specifying exactly which is needed avoids ordering errors and returns.

Second, sizing and compatibility matter. Tubes come in a range of diameters and lengths, and connectors, extension sets, and administration sets are typically matched to a particular tube or manufacturer. Substituting parts without confirming compatibility can create leaks, mismatches, or safety risks, so purchasing teams usually work from the clinical team’s product specification.

Third, many of these items are single-use or have defined replacement intervals, so consumption scales with the number of patients and feeding schedules. For research studies involving nutrition, dysphagia, or critical care, the choice of tube and formula can also be a protocol-defined variable, which makes consistent sourcing and documentation important.

Fourth, this is regulated medical-device territory. Feeding tubes and related devices are generally overseen as medical devices, and facilities typically keep records on lot numbers, expiry dates, and storage conditions. See our overview of what counts as a medical device for the broader context.

Frequently Asked Questions

What is a feeding tube used for?

A feeding tube delivers liquid nutrition, fluids, and often medications directly into the stomach or small intestine for people who cannot eat or drink enough safely by mouth.

What is the difference between a nasal tube and a surgically placed tube?

A nasal tube passes through the nose and throat with no surgical opening and is generally used for shorter periods. A gastrostomy or jejunostomy tube goes through the abdominal wall and is generally used when feeding is expected to continue for longer. Which is appropriate is decided by the care team.

Is a feeding tube the same as a G-tube?

A G-tube (gastrostomy tube) is one type of feeding tube, the kind placed through the abdominal wall into the stomach. “Feeding tube” is the broader term that also covers nasal tubes and tubes ending in the small intestine.

Can a person with a feeding tube still eat by mouth?

It depends on the individual. Some people use a tube as their only source of nutrition, while others use it to supplement what they can safely eat or drink. That is a clinical judgment made for each person, not a general rule.

Why are feeding syringes different from regular syringes?

Enteral syringes commonly use connector designs that are intended not to fit intravenous lines, which helps prevent feeding formula from being connected to a vein by mistake. Specific connector standards and local practices vary, so follow your facility’s policy.

Who decides whether someone needs a feeding tube?

The decision is made by the person’s clinical team, often with input from dietitians, speech and language specialists, and the patient or family. A general guide like this one cannot determine whether a tube is appropriate for any individual.