Taking to Instagram just weeks after the birth of son Arnold, the fitness guru spoke about how her body had changed.
‘Gosh my body has changed. That's what bodies do,’ the new mum, who is married to actor and radio host Ed Kavalee, wrote.
‘I'm slowly getting fit again... gently, compassionately and in a way that makes me feel good.’
She went on to share a quote from leadership expert Robin Sharma.
"Change is hard at first, messy in the middle and gorgeous at the end".
It’s not the first time the popular fitness star has spoken about how becoming a mother altered her physique.
Taking to Instagram earlier this month, Tiffiny posted a before and after shot, which she called 'another kind of now and then'.
'And you know what? I couldn't be happier,' the star wrote.
'I look at Arnold and it's me who created that little Ninja! My body did that.
'So, the way I see it, I’m the strongest I’ve ever been. Ninjas come in all shapes and sizes, the goal is to work on the happy just as much as the fit.’