An app that claims to help people stick to an intermittent fasting plan is getting roasted on social media.

Some people are saying the app, called DoFasting, is promoting eating disorders and body shaming with its advertisements that depict ideal body shapes and sizes.

Intermittent fasting, which is restricting meals to specific, limited time periods, is one of the more controversial dieting techniques out there. Though a study published in the journal Obesity found that the practice could have some positive effects, intermittent fasting can become unsafe if it is not monitored and controlled.

The diet strategy has recently become popular with some celebrities and tech moguls. Negative side effects such as hair loss, anxiety, and stress have been associated with intermittent fasting.

The DoFasting app prompts participants to enter their current and goal weights, and participants can choose from three tiers of plans that require various subscription fees. An annual subscription costs about $100 a year.

The app has recently come under fire on social media, mainly related to advertisements that some people say promote eating disorders and self-harm. DoFasting did not return Business Insider's request for comment.

Here's what critics are saying: