Elle Macpherson carries what in her handbag?!

She’s 51 years old, but you’d be forgiven for thinking Elle Macpherson was half her age.

With her toned bod and flawless skin, she pretty much defies science. But what’s her secret?

Well, the model’s just revealed she carries a pH balance urine tester kit in her handbag at all times.

Come again?

Speaking to the Evening Standard, Elle said it’s her health weapon. She uses it “to check that I’m in an alkaline state”.

Not sure what she’s on about? In a nutshell, measuring your urine’s pH level tells you how acidic or alkaline your body is. But why does Elle care?

Apparently, having an alkaline body wards off sickness.

Kylie Armstrong, Naturopath at Sydney’s Alkaline Spa & Clinic, strongly supports the theory, arguing: “Western diets are too acidic, causing acid waste to build up in the body and wreak havoc on our organs, which in turn leads to chronic disease”.

According to Kylie, “to achieve optimum health, your body needs to be in pH balance”.

So just how does Elle maintain her perfect pH level (not to mention dive like a total boss)?

Firstly, she follows an alkaline diet (which includes lots of leafy greens). She also swears by her own The Super Elixir by WelleCo – a range of alkalising food supplements she released last year.

The model also eats three healthy meals a day, adding: “having said that, red meat, wheat and dairy don’t work for me.”

It’s not exactly a flexible meal plan, but at bh, we’re big believers in finding the diet that works for you.

‘The Body’ also puts her figure down to “variation” and “consistency” – in other words, tons of exercise:

“I work out for 45 minutes a day, six days a week, combining hiking, water skiing, swimming and running on a beach.”

Yikes. It seems an alkaline bod doesn’t come easy!

Do you pay attention to pH when it comes to your diet? What’s your greatest health tip?