Michelle Bridges: Age, Partner, Children, and Fitness Program

Michelle Bridges built a multi-million-dollar fitness empire as a trainer on The Biggest Loser, then stepped into a new role: single motherhood. This fact-checked profile traces her journey from TV fame to a quieter private life.

Born: 20 October 1970 ·
Children: 1 son (Axel, born 2015) ·
Relationship status: Separated from Steve ‘Commando’ Willis (2020) ·
Profession: Personal trainer, author, TV personality ·
Famous for: The Biggest Loser (2007–2015)

Eight key facts about Michelle Bridges, one pattern: her public life has been remarkably consistent in its focus on fitness, family, and entrepreneurship.

Does Michelle Bridges have a partner?

Her relationship with Commando

• Michelle Bridges began dating fellow Biggest Loser trainer Steve Willis in May 2013 (IMDb Biography).
• The couple separated in 2020 (Profile Talent Management bio).

Current relationship status

As of early 2025, Michelle Bridges does not have a publicly known partner. She has not commented on her dating life since the separation. This is consistent with her deliberate shift toward privacy after years of public scrutiny.

The implication: Bridges has chosen to keep her personal life off the record, a sharp contrast to the years she spent sharing her relationship with Commando on social media and in interviews.

How many kids does Michelle Bridges have?

Her son Axel

Michelle Bridges has one son, Axel Willis, born on 19 December 2015 (The Australian Women’s Weekly). He is her only child.

Motherhood journey

Bridges was 45 years old when she gave birth. She has spoken about how motherhood changed her perspective on health and fitness. In a Nine Honey interview, she admitted her earlier comments about pregnancy were “naive.”

“I was so naive — I thought I’d be back in the gym two weeks after giving birth.”

— Michelle Bridges, via Nine Honey

The pattern: Bridges’ public narrative has shifted from “push through it” to “it’s okay to be human.” That’s a rare and honest pivot for a fitness guru.

How old was Michelle Bridges when she had a baby?

Pregnancy at 44

Michelle Bridges gave birth to Axel at age 44. She was 44 when she became pregnant and 45 when she delivered.

Comments on later motherhood

Bridges has been open about the challenges of being an older mother. She said she had “no idea” what she was getting into, and that her career-oriented mindset didn’t prepare her for the demands of a newborn. This honesty has resonated with many women who became mothers later in life.

The message is clear: even the fittest find parenthood humbling.

Did Michelle Bridges do IVF?

Public statements on conception

There is no public confirmation that Michelle Bridges used IVF to conceive. She has not disclosed details about her fertility journey. The question is common because she became pregnant at 44, but she has never confirmed or denied using assisted reproduction.

What this means: In the absence of a statement, it’s inappropriate to assume. Bridges has chosen to keep this aspect of her life private, and that choice should be respected.

Who is Michelle Bridges?

Early life and career

• Born 20 October 1970 in Australia (Wikipedia).
• She is an Australian personal trainer, author, and television personality.
• She married fitness trainer Bill Moore in 2003 and separated in May 2013.

The Biggest Loser

Bridges became a celebrity trainer on The Biggest Loser in 2007 and remained with the show for nine years. She was known for her no-nonsense approach and her ability to push contestants to their limits.

12WBT

Michelle Bridges co-founded and owns the 12 Week Body Transformation program (12WBT), an online exercise, nutrition, and mindset program. The program claims over a million kilos lost by clients. SmartCompany estimated her company revenue at $60 million annually (Women’s Agenda quoting SmartCompany).

Personal life

Bridges has one son, Axel, from her relationship with Steve “Commando” Willis. They separated in 2020. She continues to run 12WBT and is a national commentator on health and wellness.

Why this matters: Bridges is not just a TV personality; she built a sustainable business that outlasted her TV fame. Her wealth and influence come from real entrepreneurship, not just a reality show paycheck.

Explore related profiles: Matt Moran: Biography of the Chef and Farmer.

Timeline

A clear arc emerges from the timeline: TV fame, motherhood, then a quieter life.

The timeline shows a clear arc: TV fame, then motherhood, then a quieter life focused on her son and her business.

Clarity

“I was so naive — I thought I’d be back in the gym two weeks after giving birth.”

— Michelle Bridges, via Nine Honey

“Michelle Bridges is one of Australia’s most influential personal trainers and a best-selling fitness, nutrition, and mindset author.”

— Profile Talent Management, January 2025 bio

For Australian women who grew up watching Bridges on The Biggest Loser, the choice is clear: she traded the spotlight for a quiet life centered on her son and her business. That’s a trade-off many understand — and one she seems to have made without regret.

Frequently asked questions