Unplanned weight gain has been one of the growing issues amid the COVID-19 pandemic. The forced isolation, closing of gyms and limited time to do groceries led many people to an unhealthy lifestyle with poor diet and less exercise.

But many parts of the U.S. and other countries recently started to slowly reopen. That means people can access certain public places, such as restaurants, parks and tourist spots. 

Many are excited to meet with families and friends again but are having problems with their lockdown pounds. That leads them to diets that promise to show quick results.

One approach that has been getting attention amid the pandemic is crash dieting. It can cause  instant weight loss but health experts warned that this eating plan is unhealthy and not sustainable. 

“So you’ve put pounds on during lockdown and you want to get back to your pre-lockdown weight as soon as possible,” Hannah Richards, a nutritionist and author of “The Best Possible You,” told Daily Express. “Let me tell you something - crash dieting doesn’t work and there always comes a point when the intermittent fasting backfires.”

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