Supermarkets themselves have warned that there could be empty shelves and higher prices. And Bank of England governor Mark Carney has said that, in a worst-case scenario, our shopping bills could increase by 10%.
In preparation, supermarkets say, they have been stockpiling some foods - but they are unable to do that for some fresh fruit and veg. Sainsbury's has also said October would be one of the worst times for the UK to exit the EU without a deal because warehouse capacity is already strained by he seasonal stock build-up ahead of Black Friday and Christmas, limiting supermarkets' ability to store goods ahead of Brexit.
Shoppers planning to buy from companies based in the EU, Norway, Liechtenstein and Iceland after a no-deal Brexit have also been warned credit and debit card charges may be higher and payments may take longer.
2) We will need to take extra measures when travelling to Europe
Millions of people from the UK travel abroad each year - the vast majority of journeys made to Europe.
3) Medication might be not available or it may be more expensive
Ministers and NHS leaders say every effort is being made to ensure there will be enough medicines and clinical equipment available in the event of delays to imports from the EU. While there are regular fluctuations in medicine supplies, there are concerns a no-deal Brexit could make shortages worse.
About three-quarters of the medicines and most of the clinical products we use come from or via the EU.
Just today I had to experience a complete different level of frustration. Visiting the local migrants help group to get informed about options, opportunities and help for applications. The UK government has reached an agreement with the EU, as well as Norway, Iceland, Liechtenstein, and Switzerland, that will protect the rights of EU citizens and their family members living in the UK.
There are about 3.7 million EU citizens living in the UK.
5) Importing goods from the EU may get more expensive
Importing goods from the EU is likely to get more expensive when free movement of goods ends with the UK's departure.
As a member of the EU, UK firms don't have to pay extra duties, taxes or have customs checks on goods travelling to or from the EU.
But after a no-deal Brexit, new rules will apply. UK businesses will need to apply the same processes to EU trade that apply when trading with the rest of the world.
Running your own business as entrepreneur during such a difficult time obviously affects your entire life circumstances. Therefore also social contacts such as family, friends and colleagues and everywhere you can feel a tightness. Trying to find answers and security is tiring and you come to the conclusion that whatever will happen it will happen anyway. But thanks to Brexit supporters such as David Cameron, Theresa May and Boris Johnson the United Kingdom’s economy will crash...sooner or later. But the perspective on Brexit is changing... read here
Farewell Europe. Farewell “united” Kingdom