"Pointless and byzantine" export rules have resulted in delays to fresh and chilled foods such as sandwiches getting to the shelves.
"Candidate shortages continue to plague businesses, who are all recruiting from the same pool of talent and struggling to fill gaps."
Many businesses have reported huge issues in their supply chains in recent months, leaving some shop shelves empty, or forcing restaurants to remove items from their menus.
One firm warned the staffing crisis has made milk shortages over the next few weeks inevitable.
“The UK is the only one of the 10 biggest countries to see this happen, with Brexit exacerbating the decline.”
Spoons customers last week reported beer shortages at the Brexit-backing pub giant amid supply chain chaos.
PwC is offering each of its 22,000 UK workers an extra £1,000 to come into the office this month.
In 2019 prominent Leave advocate Nigel Farage described warnings of supply chain issues as "utter tosh". Was it Project Fear, or Project Fact?
“Over 52 per cent. Is that the beginning of a national awakening?”