We asked leading entrepreneurs in the UK for their recipes for success when starting a business – how can you get the mix just right?

Greg Duggan is the co-founder of WheyHey – the protein ice cream company. His start-up completely disrupted the ice-cream industry and has built an army of fans, including celebrity mode, David Gandy. So what’s Greg's recipe for success when growing a business?

“It’s about trying to keep those chest bumps down by having raw perseverance, determination and willingness to sweat and sleep four hours a night for the first two years.”