United Kingdom, May 29 -- Rebel Wilson's "healthy habits" are important for her mental health.

The 45-year-old actress embarked on a weight-loss challenge around Easter, and Rebel has now offered some health advice to her social media followers.

The 'Bridesmaids' star said on Instagram: "Ok, so you delete some things from your life that are unhealthy and pick up some healthy habits.

"So not just focusing on but trying multiple healthy habits, which will be a struggle.

"I might have to write myself a little checklist on a post it note and make sure I'm trying to do each thing each day.

"But I tell you what, if you can get into a really good groove with all these healthy habits, it can be really great for your physical and mental healt...