The eldest Kardashian sister was reportedly first introduced to the diet in 2017 after doctors found high levels of mercury and lead in the system. Kourtney detailed her experience with it earlier this summer and why she was back on the diet.
"My body never looked better than when I did the keto diet two and half years ago, when I did it for two months. In my experience, I’ve found the best method to train my body to curb sugar cravings, burn fat, and kick-start weight loss is by sticking to a keto diet," she penned for Poosh's website.
She continued, "I had a really positive experience the last time around and wanted to restart my routine this summer. It’s definitely a more restrictive eating plan, but I found that once I knew the ground rules, I was very strict and really stuck to it. My plan this time is to eat minimal carbs and no grains, beans, or legumes. I’m focusing my meals on fresh vegetables and lean proteins. I eat three meals a day with no snacking in between if possible."