When lifting boxes and crates, you better check their weight first.

Before carrying boxes and crates, test their weight so you can get ready to lift them correctly. Most grocery store jobs involve some lifting. Hence, employers must provide support to lift heavy or bulky items; this help might include a dolly or cart or assistance from a co-worker.

The OSHA suggests that when holding, lifting, or carrying items:

On top of that, employers should work with suppliers to get meat and other supplies in lower-weight boxes to reduce the weight manually handled. Physical Therapists and Youtubers Bob Schrupp and Brad Heineck have a fun video showing the best way to lift objects without straining your back. Watch from 7:00 to 8:35. https://www.youtube.com/watch?v=tqBcQ-wqjl8&t=420s&ab_channel=Bob%26Brad

Remember when moving large boxes and heavy items, keep them close to your body!!! It helps to reduce stress on the back.

Source: The Occupational Safety and Health Administration: Guideline for Retail and Grocery Stores Photo by People Creations on Pikwizard