Nathan Buckley's girlfriend Alex Pike, 43, showcases her dramatic weight loss

Newly minted footy WAG Alex Pike has made no secret of her dramatic body transformation over the past few years.

And the 43-year-old cosmetic nurse showcased the full extent of her weight loss in a before-and-after post shared to Instagram on Monday.

Alex, who owns two injectables clinics in Melbourne and Albury, demonstrated her dramatic slim-down in the photos, which appear to show a loss of 10 kilos.

Transformation: Nathan Buckley’s cosmetic nurse girlfriend Alex Pike, 43, showcased the full extent of her weight loss in this before-and-after post shared to Instagram on Monday

In the ‘before’ photo, Alex displayed a fuller figure and rounder face as she posed in a baggy T-shirt and shorts. 

She looked like a supermodel in the ‘after’ photo, showing off her toned figure in a nude swimsuit while flexing her muscles.

Alex has been walking a minimum of 10km per day during Covid lockdown in order to stay in shape. 

Now and then: The mother of three has been open about her body transformation over the last two years, which she credits to the viral #75HARD Challenge and walking 10km per day

She also recently revealed her simple, inexpensive secrets to everlasting youth.

In a post on Instagram, she listed her top tips to ensure ‘you’re positively ageing’.

Among her secrets, she suggested cutting back on alcohol and refined sugars, drinking plenty of filtered water, and getting a good night’s rest.

Before and after: The #75HARD Challenge involves twice-daily workouts, calorie counting, a clean diet with no cheat meals, reading non-fiction books every day and much more

Alex also revealed her beauty staple is a hyaluronic serum.

The mother of three has been open about her body transformation over the last 24 months, which she credits to the viral #75HARD Challenge.

This involves twice-daily workouts, calorie counting, a clean diet with no cheat meals, reading non-fiction books every day and much more.

Tips and tricks: Alex recently revealed the simple, inexpensive secrets to her everlasting youth

Speaking to the Curious Conversations podcast in March, Alex said she never felt more ’empowered’ than she does at her age.

‘I hate when people say, “You’re really hot for a mum”. It’s like, really?’ she said.

‘Do I have to be attractive for a mum? Can’t I just be attractive? I don’t want to be good for my age. I want to be good.’

It’s love! Alex Pike recently celebrated her boyfriend Nathan Buckley’s (right) 49th birthday