The U.S. Food and Drug Administration says that some "Made Good" granola bars may be bad.

Some of them are now under recall, which the company has announced.

The FDA is worried there may be metal in the snacks. The company says the metal may be from a small, flat bristle from a brush.

In a statement, the company said, "There have been no reports of injury; we’re initiating this recall out of an abundance of caution and commitment to the well-being of our valued customers."

The granola bars in question were sold from January to November of last year.

The bars can be returned for a refund.

Anyone with questions can call 855-215-5695 between 8 a.m. and 5 p.m. EST.