The Central Bank says there could be temporary food shortages in Ireland if there's a no-deal Brexit.
Its latest report shows the economy is due to grow by 4 percent next year - more than previously thought.
But it would be just 0.7 per cent if Britain leaves the EU without a deal.
That scenario would also mean 35-thousand less jobs being created here in 2020.
The Central Bank's Mark Cassidy says some industries would be affected more than others: