New York (CNN Business) Forever 21 recently shipped diet bars along with customers' online orders. Not every customer welcomed the surprise addition to their packages.

Many people on social media called Forever 21's diet bar shipments offensive and "fatphobic." A number of people on social media said they received the bars along with orders of plus-sized clothing. Atkins markets the bars as low-carb snacks for weight loss.

"Bought a swimsuit online from Forever 21 and they sent me an Atkins bar along with it," Twitter user @caileeargudo wrote . "Thank u for reminding me that I don't have a beach ready bod."

Forever 21, in a statement, said it sent the free diet bar samples with all orders and sizes.

"From time to time, Forever 21 surprises our customers with free test products from third parties in their e-commerce orders," the company said. "The freebie items in question were included in all online orders, across all sizes and categories, for a limited time and have since been removed. This was an oversight on our part and we sincerely apologize for any offense this may have caused to our customers, as this was not our intention in any way."

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