McDonald’s has some healthy advice for its workers – don’t eat at McDonald’s.

The fast-food behemoth recently posted the jaw-dropping tip on its Web site for employees, warning that the very same burgers and fries they sling for their legions of customers are hazardous to their health.

“Fast foods are quick, reasonably priced, and readily available alternatives to home cooking. While convenient and economical for a busy lifestyle, fast foods are typically high in calories, fat, saturated fat, sugar, and salt and may put people at risk for becoming overweight,” the post said, according to CNBC.

The post shows a picture of a burger and fries – but slams the meal as an “unhealthy choice.”

It then praises a submarine sandwich and salad – typical fare served by arch-rival Subway – as a healthier choice.

“It is hard to eat a healthy diet when you eat at fast-food restaurants often,” according to the post, which cautions fast-food junkies to watch how many burgers and fries they shovel down.

Read More: