He’s gone from chunk to hunk in just a couple of weeks.

But it looks like Spencer Matthews’ hours in the gym have paid off.

Spencer Matthews
Spencer Matthews has been training hard to get into shape (Dominic Lipinski/PA)

The Made in Chelsea star took to Instagram to show off his new, buff physique.

His words of fitness wisdom alongside his pic read: “Diet and hard graft are key to achieving your health and fitness goals… @thelomaxway @markzim88 & @dboddy2 are helping me get to where I wanna be. Stick at it!! #NothingButProteinShakes.”

Just a few weeks ago he was pictured alongside girlfriend Lauren Hutton sweating it out at a boot camp in Morocco.

He also recently revealed during a TV interview that he’d given up drinking alcohol for a few months.

He told This Morning: “I haven’t had a drink for three months actually, and I suppose my behavioural changes probably have been affected by the no drinking.”

Well, whatever it is, it’s working so keep it up, Spencer!