How to update the Unix path in macOS after editing /etc/paths.d

I added another file to /etc/paths.d containing the file I want to add the path environment variable on macOS Sequoia. The file is saved. I need my Mac to pay attention, to update the PATH with the new item. 👉🏽 How do I get my Mac to update the path now? I assume a restart of macOS will establish a newly updated path. But that seems extreme. How can I prompt an update of $PATH without bothering to restart the computer?