Kim Kardashian has been inspired to diet by Jennifer Lopez.

The 35-year-old recently reached her goal weight of 54.5kg after giving birth to son Saint in December, but she now wants to shed even more weight after helping to celebrate the singer’s 47th birthday in Las Vegas at the weekend.

Writing on Instagram, the Keeping Up With the Kardashians star said: “I know I’m a little late, but Happy Birthday to my girl @jlo. We had the best time in Vegas celebrating your birthday & after seeing your show I started my diet again LOL. I’ve never met anyone who ages backwards! So beautiful inside & out! Forever my inspiration!” (sic).

Kim recently embarked on a strict exercise and diet regime in a bid to lose 31kg.

And last week she revealed: “I’m definitely to my goal weight. I’m down more than I expected.”

Kim followed the low-carb Atkins diet and said she found it very easy.