Grocery stores are struggling with rising labour and product shortages that could threaten Canada鈥檚 food security, experts say.

Employee absenteeism due to workers calling in sick and COVID-19 protocols has hit about 30 per cent at some stores and is continuing to rise, Gary Sands, senior vice-president of public policy with the Canadian Federation of Independent Grocers, said Tuesday.

Without access to rapid testing in many provinces, he said workers are repeatedly forced to isolate for a week or more after an exposure to COVID-19.

If the situation worsens, some grocery stores won鈥檛 be able to stay open 鈥� threatening food security in rural and remote areas that rely on a sole independent grocer, Sands said.

鈥淚f we have to keep sending people home, at a certain point stores are not going to be able to operate,鈥� he said. 鈥淲e鈥檙e very frustrated with the lack of rapid test kits for grocers.鈥�

Health Canada has made some rapid test kits available directly to companies in critical sectors, including the food industry, with 200 or more employees.

But many independent grocery stores don鈥檛 meet that threshold, putting those kits out of reach, Sands said.

Yet many grocers cannot obtain rapid tests through provinces either, he said.

鈥淚ndependent grocers are in a myriad of communities in this country where there is no other grocery store,鈥� Sands said. 鈥淚f those stores close, you鈥檝e got a food security issue.鈥�

Meanwhile, stores are also experiencing a shortage of goods stemming from supply chain issues, including a shortage of truckers, packaging and processing delays and the Canadian winter.

Grocers rely on 鈥渏ust in time鈥� delivery, meaning even transient issues like inclement weather can cause delays and shortages, Retail Council of Canada spokesperson Michelle Wasylyshen said.

Still, empty shelves at some supermarkets should only be temporary, she said, noting that retailers are exploring all avenues to get products to stores as quickly as possible.

But some supply chain issues could be longer lasting, such as the trucker shortage intensified by the federal government鈥檚 new vaccine mandate.

鈥淭he issue with the truckers having to be vaccinated is causing some delays, especially with the supply of fruit and vegetables from California,鈥� Sands said.

鈥淕rocers in Central Canada are mostly reporting just delays of a couple weeks, but in the West the shortages seem to be more significant.鈥�

In some cases, Sands said grocers are short nearly 40 per cent of their usual stock of a variety of products.

鈥淓specially in the West, some grocers are saying the situation is as bad as it was in the spring of 2020 in terms of supply,鈥� he said.

It鈥檚 not just the produce aisle that experiencing shortages. Soups, cereals and cleaning supplies are all running lower than normal, Sands said.

Many shoppers have noticed empty shelves where Kellogg鈥檚 cereal is normally stocked, for example.

Kellogg Canada said in an emailed statement that higher at-home consumption coupled with supply chain challenges have impacted the availability of some products in Canada, such as Kellogg鈥檚 Rice Krispies cereal.

The company said the 鈥渋ntermittent shortages鈥� reflect the challenging operating environment all manufacturers are experiencing, adding that it鈥檚 working hard to get Kellogg鈥檚 cereal brands back on store shelves.

About 1,400 union workers at Kellog鈥檚 plants in the United States were on strike for several weeks last year. An agreement was reached Dec. 21.

鈥擝rett Bundale, The Canadian Press