Fitness fashion queen Lorna Jane Clarkson is under fire over an advertisement for a receptionist at her Brisbane headquarters that stipulates bust, hip, waist and height measurement requirements.

The healthy living fashion entrepreneur posted the advertisement for a woman over 165cm tall who would fit the brand's size small clothing on job-seeking website Seek last Friday.

It was quickly whipped down on Monday, however, following a social media backlash.

But a spokeswoman for the niche clothing juggernaut insisted the advertisement came down after less than two business days due to an overwhelming response.