"I'm so proud of you!! You look fantastic already with your weight loss," one said.
"You look great, you look absolutely beautiful beforehand and still now. Such a role model," another agreed.
"You already look amazing! Killing it! Any positive changes are good changes," another fan said.
Wilson explained to fans she was committed to her health as she rang in the New Year.
"Okay so for me 2020 is going to be called 'The Year of Health' — so I put on the athleisure and went out for a walk, deliberately hydrating on the couch right now and trying to avoid the sugar and junk food which is going to be hard after the holidays I've just had but I'm going to do it! Who's with me in making some positive changes this year?"
Her efforts were visible during a fundraiser at the Pacific Fair Magic Millions Polo on the Gold Coast yesterday where she raised $100,000 for the Bushfire Relief.
At the event she posed for a photo alongside Australian ironman Jett Kenny, joking on Instagram the athlete was her new "beach training partner".
Sporting a blue long-sleeved dress that cinches in at the waist, Wilson was all smiles.
In another snap shared on New Year's Eve, Wilson rocked another figure-hugging blue dress.
Wilson went through a weight- loss transformation in 2019 after hiring celebrity trainer Gunnar Peterson, who revealed she trained at least four times a week.
"When she's in town, she's a solid four days a week," the LA-based fitness expert told US Weekly. "She is such a cool person to work with."
He also revealed the workouts he puts the Pitch Perfect star through, explaining they were all based on "peripheral heart action".
"It's forcing the blood to go from upper extremity to lower extremity sequentially so that you elicit a response from the heart rate … You're creating an aerobic response in what would normally be viewed as anaerobic movements," Peterson said.
These workouts could be anything from an intense session on a treadmill to a hectic HIIT class.
