The boss of Wales based food retailer Iceland has told ITV News Wales that in the short term, a no deal Brexit would cause short term turbulence that will hit "the most vulnerable and poorest communities the worst."
Richard Walker said there is a "Westminster bubble" and fears they don't understand the implications that a no deal would create.
But despite the uncertainty and disruption in the short term he said there is "no doubt that we will trade through it."
In the long term he said "hopefully Brexit will be a boom to our domestic agricultural industry."
He said there has been some "scare mongering" in terms of how bad the consequence of a no deal Brexit will be and doesn't think it will be as "good or as bad as either side of the argument makes out."
When asked about the impact on people's weekly shop he wasn't sure what would happen.
In an interview with ITV News, Chancellor, Sajid Javid said today that he is feeling confident that "we can get through no deal and be stronger."
He said whether we leave with a deal or not he doesn't plan "on any damage to the economy." This comes after it was announced the UK's economy is shrinking for the first time in seven years.
However he admitted there would be "challenges" to certain industries and sectors if the UK left with no deal.
The Iceland Foods boss said until the government comes up with a plan, all we can do is make some short-term changes and that will come in the form of stockpiling.
He pointed out that a 'Halloween Brexit' is far from ideal for stockpiling.
Mr Walker's main message to its customers is "not to panic."