After gaining weight in 2020, Sandra Lee, 54, is trying a “cleanse” so she can drop some of those pounds.

The celebrity chef said that she gained 30 lbs. last year, and “weighed in at 170 two days before Christmas.”

She wrote on Instagram, “None of my clothes fit and worse I feel terrible. I feel my very best at 140 lbs.”

She said she was inspired by her sister Kimmy to try a cleanse. She started a new regimen on Christmas Day, cutting back on alcohol, red meat, and most carbs.

Instead, Lee is now focusing on “lots of vegetables and berries, banana, watermelon, avocado,” along with fermented foods such as pickles and sauerkraut, and eggs and soups, adding, “Oh and lots of water ……….A LOT!”

Lee went on to say that she has lost 10 lbs. since Christmas Day, but the low-calorie diet is making her feel lethargic.

She said, “My energy isn’t super awesome though (1250 calories a day is tough — I LIKE TO EAT!). Tomorrow or the next day I’m going to go get a vitamin IV and hope that that helps a little bit.”

Lee’s daily caloric intake is significantly lower than the recommendations from the U.S. Department of Health, according to PEOPLE.

The health department recommends women to eat around 1,600 to 2,400 calories a day, and men from 2,000 to 3,000 calories per day.

Lee also asked her fans to share their health goals for 2021. “I would love to know what your health plans are for the new year and hope that you stay the course and fulfill them alongside me,” she said.

Lee, who is known for her “Semi-Homemade” cooking concept, broke up with her former partner, New York Gov. Andrew Cuomo, in September 2019. She revealed in December about the heartbreaking process of moving out of her Westchester home.

At the time, she wrote on Instagram, “It took me a lifetime to build that home. The home I never had when I was growing up. Warm and clean with a spectacular view from every room. I can’t even imagine how I’m going to rebuild it or where I can rebuild it or that it’s even rebuildable.” The article originally appeared on PEOPLE.