Scotland's farmers say they are facing a "perfect storm" of inflationary pressures which are being made worse by the war in Ukraine.
The National Farmers Union (NFU) Scotland said rising fuel costs and grain shortages could mean prices going up and some goods becoming scarce.
The Scottish Government has now called for a summit of ministers from across the UK to discuss the problems now facing farmers, fishermen and food producers.
NFU Scotland president Martin Kennedy told BBC Scotland the impact of Russia's invasion, after a two-year period which brought Brexit and the Covid pandemic, was "absolutely devastating".
He added: "I have not seen anything like this before. It is completely unprecedented.
"The long-term implications of that is going to have a serious impact right across the food supply chain."
"We have heard the term before about a 'perfect storm', but I have never seen anything like this before."
Mr Kennedy said the pig sector is under threat due to the rising cost of feed and warned imminent intervention was needed to ensure pork remains on shop shelves.
There have also reports in recent weeks of soaring costs making it unviable for some fishing vessels to leave port, and the food processing and storage sectors also being hit hard with rising overheads.
The removal of tax relief for red diesel has also also caused price increases.
To illustrate the challenges facing the sector, Mr Kennedy said he paid £240 for a tonne of fertiliser last year, but this year the price has soared to about £800.