Super model Miranda Kerr revealed that acai berry is her personal secret to a healthy body, in a YouTube video that ran on yesterday's KBS 2TV's Good Morning Republic of Korea.

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In the video -- titled "The BODY BEAUTIFUL with Miranda Kerr" -- the supermodel says, “Acai berry has 22 times more antioxidant activity than blueberries.” According to the video, antioxidants not only help prevent aging, but also decrease the risk of heart disease, improve vision recovery, and improves blood circulation. Now that you know the secret, don't tell anyone! Shh!

Check out her video here:

(source: nate news, enews, youtube)