Weighted Vests Are Suddenly Popular. Do They Work?

 By Kristen Marie Beavers, Research Professor of Health and Exercise Science, Wake Forest University

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Jannelliz Barragan, center, wears a weighted vest during a workout class in New York on jun. 13, 2026. 

Health and fitness trends come and go, and many fads don’t deliver on their promises — remember vibrating belts or sauna suits? Today, weighted vests, made from sturdy fabrics like nylon and filled with iron sand or small weights, are gaining widespread use. Here’s what to know about them:

Weighted vests have been around for centuries, but they have recently surged in popularity in response to a broader shift in thinking about exercise. No longer confined to the gym, physical activity is increasingly about maximizing health benefits of the movements people already do — things like walking, climbing stairs or cleaning their homes.

Weighted vests fit squarely into this philosophy. They offer a simple, manageable way to add resistance to everyday activities. And they don’t require additional time, complex equipment or major changes to established routines.

I study health and exercise science and have analyzed the effects of exercising with weighted vests. In my view, they represent a low-tech, high-impact opportunity to sneak resistance training into everyday activities. Research has shown that adding weight can help with building muscle and bone, as well as losing weight and keeping it off.

As with any tool, however, the results depends on how you use it.

The physiology behind the practice

The human body has great capacity to adapt to environmental stress. Weighted vests add mechanical stress, or load, to the body, requiring muscles and bones to withstand more force than usual.

Many parts of the body respond to this challenge. The brain learns to “recruit,” or activate, muscle fibers more effectively. This can help prevent injury and increase strength and performance.

Reacting to greater stress can improve muscle power and agility, which are vital for preventing injuries. Carrying a heavier load also makes your heart work harder, which improves cardiac health.