ALEXA JEAN BROWN

1

Age – 24

Followers – 1.9million

About – American mum-of-one Alexa’s career as an online fitness model was kick-started by a series of snaps showing how she quickly lost her baby weight and regained her incredible figure.

Instagram earnings – £1.5million

BELLA FALCONI

2

Age – 28

Followers – 2.2million

About – Fitness model Bella, from Minas Gerais, Brazil, might be best-known for showing off her incredible abs on her Instagram account, but she also models for fitness magazines and promotes Shredz body-building supplements.

Instagram earnings – £1.7m

AMANDA LEE

3

Age – 28

Followers – 2.3million

About – Certified fitness trainer Amanda, of Los Angeles, US, works as a Pilates instructor as well as a model after finding online fame for her incredibly pert backside.

Instagram earnings – £1.9million

LACI KAY SOMERS

4

Age – 24

Followers – 2.4million

About – American glamour girl Laci combines her social media posing with duties as a ring girl and presenter for mixed martial arts tournaments, working as a personal trainer and chef, and touting Shredz body-building supplements.

Instagram earnings – £2million

CLAUDIA ALENDE

5

Age – 20

Followers – 2.8million

About – The Brazilian former Miss Bum Bum finalist became an internet sensation last year thanks to her resemblance to Megan Fox and has used this to promote sexy lingerie.

Instagram earnings – £2.1million

ABIGAIL RATCHFORD

6

Age – 23

Followers – 2.7million

About – After finding fame through her steamy posts on social media, Los Angeles model Abigail has landed gigs posing for US mag Sports Illustrated as well as legendary adult publication Playboy.

Instagram earnings – £2.3million

ANA CHERI

7

Age – 29

Followers – 4.6million

About – The Playboy model from California – she was the mag’s October Playmate – promotes Shredz weightloss and body-building products as well as her own fitness videos and calendars.

Instagram earnings – £2.4million

CHANTEL ZALES

8

Age – 25

Followers – 3.1million

About – The Los Angeles model is another who promotes Shredz weightloss and body-building products as well as her own calendar.

Instagram earnings – £3.6million

PAIGE HATHAWAY

9

Age – 26

Followers – 3.2million

About – Originally from Minnesota but now living in Oklahoma, Paige runs her own fitness courses as well as promoting Shredz weightloss and body-building products.

Instagram earnings – £3.8million

KAYLA ITSINES

10

Age – 24

Followers – 4.1million

About – Kayla is a certified Australian fitness trainer and has her own series of Bikini Body Guides, including a 12-week exercise plan that is used by hundreds of thousands of her followers on Instagram.

Instagram earnings – £4.9million