Grenade is expanding its Carb Killa protein bar range with its new Birthday Cake flavoured bar.

Set to launch in August 2018, the latest addition to the Carb Killa family, is a colourful sprinkle-laden bar with an white chocolate coating and indulgent nougat, birthday cake flavoured centre.

Delivering 20 grams of high quality, whey protein and only 2 grams of sugar, the Carb Killa Birthday Cake bar claims to be the ultimate guilt-free way to have your cake and eat it too.