Grenade has launched a Christmas limited-edition, high-protein, low-sugar Carb Killa Gingerbread bar. It blends the traditional flavours of the festive season into a protein-packed bar, containing 22g of high-quality, whey protein and just 1.6g of sugar.

To help give something back and support the homeless over the Christmas period, 10% of all proceeds will be donated to Shelter.

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