The 42-year-old 'MMA fighter hit out at his ex-wife's recent launch of a protein shake range, Katie Price Nutrition, and insisted she wasn't very interested in fitness when they were together.
He said: ''She wasn't interested, not really. She came (to the gym) a couple of times yeah.
''I just see it as a money-making opportunity, I don't think she is actually - it's anything to make a buck.''
Alex - who won 'Celebrity Big Brother' in 2010 - has now returned to his personal training roots and called his time in the celebrity spotlight the ''prostitute years''.
He told The Sun Online: ''The celebrity world doesn't really make me money - it might do for Katie, but it's a pretty crappy life having to sell your soul to make a living.
''I call it the prostitute years and now it's self-worth, I'm going back to what I love.
''All the celebrity crazy world aside, something I've always got and I can always stand by come rain and shine is my fitness career.
''I was a qualified personal trainer before I did all the celebrity stuff .
''I've had a lot of inner demons and battles the one thing that's kept me going through all of this is my training - it's the symbol that's held me together through the stress and pain.
''My tagline is health is the only wealth you need.''
Alex and Katie, 39 - who is now married to her third husband Kieran Hayler - split up in 2011 and he is now engaged to Nikki Manashe and trying for a baby.
He said: ''We are trying for a baby first.
''That's the plan. We want a baby first, before we get married.''
From their newest EP 'What Did You Think When You Made Me This Way', Nothing But Thieves drop the lyric video for their single 'Take This Lonely...
The Lumineers honour their friend and hero Tom Petty with a sensational cover of his 1996 song 'Walls' from the 'She's the One' soundtrack.
Watch Olly Murs get his nerd on as he blags his way into an exclusive Snoop Dogg party (where Rowan Atkinson is the bartender) in the video for their...
From 'Happy' to 'Banana Pancakes', these are soaked in positivity.
Mariah Carey is the picture of glamour in the black and white video for her brand new single 'With You'. It's the lead single from her forthcoming...
Eminem draws attention to the negative response his 2017 album 'Revival' received in the video for his latest song 'Venom'; a song recorded for the...
With the recent release of her third, very well received album 'Hunter' just behind her, Anna had plenty of relatively new songs to showcase.
Gritty and involving, this small British thriller is like Memento crossed with The Bourne Identity...