She prefers the "gym and a walk" unlike her sibling.
"Kareena is the yoga endorser (of our family). She gets after us to do yoga. But I am not so much into yoga as she is.
She has really taken to it and it's a great form of exercise but I prefer the gym," Karisma told IANS. "I live a healthy lifestyle.
I eat well, but I exercise and do everything in moderation. I go to the gym or for a walk and that's it for me.
She added. Asked about her comments on Kareena's much-hyped size-zero figure, the 35-year-old asserted:"I don't think there's any size zero.