By Chelsea White
Having bounced back into her stunning pre-pregnancy shape after only giving birth in September, Megan Fox is letting other mums in on the secret - say no to dairy.
The 26-year-old beauty says she has not been working out since having her son Noah but yet she has been able to get her body back.
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Speaking at the premiere of her new film This Is 40 in Hollywood, California, on Wednesday, the actress seemed shocked herself that she had got back into shape so soon after giving birth.
'I didn’t do that much [working out] because after you have a baby, it’s very difficult to work out and I wouldn’t recommend it,' the actress told Hollyscoop.
'I should have pre-endorsed some sort of workout something, so that I could be selling it now!'
Without working out, the actress did have to make sacrifices in her diet.
'I’m not eating dairy, that’s my biggest secret,' Megan said. 'It’s really hard on your hormones and it’s not good.'
The transformers actress said it was simple, issuing a ultimatum to others trying to loose their baby weight.
Megan did not have a lot of weight to loose however.
The star only gained 23 pounds while expecting her first child to husband Brain Austin Green.
'I only gained 23 pounds when I was pregnant and I'm still 10 pounds heavier, but I don't want to kill myself trying to get back into shape because it's not a priority right now,' she told the Daily Mirror.
'I'm too in love with Noah and I don't want to be away from him. I just want to be home.'
While she has not worked out much following the birth of Noah, Megan did put in the hard work while she was pregnant.
'We worked out throughout her entire pregnancy,' personal trainer Harley Pasternak said.
'She was a model of health through the whole process.
'She really educated herself big time and had a great relationship with her physician so she really understood the safe boundaries of how to exercise and eat well during pregnancy. As a result, she knew how active she could be and she was very consistent and didn't overdo it.
'As she progressed from trimester to trimester, we'd modify things.'
VIDEO: Megan looked great at the premiere of 'This is 40'...