Food Chia

More than 30 cases of salmonella infection tied to chia powder have been reported in Canada. (Matthew Mead/Associated Press)

People on both sides of the Canada/U.S. border should avoid eating several recalled brands of chia seeds, health officials say.

The U.S. Centers for Disease Control and Prevention warned Friday about an ongoing outbreak linked to products with chia powder, which is made from small chia seeds that are sprouted and ground.

The powder is often added to smoothies and sold at specialty stores, as well as online.

Recently recalled brands in Canada include:

  •     Madegood brand Chia and Berries Fruit & Nut Bars distributed in Ontario.
  •     Organic Traditions chia seeds sold in various bulk sizes.
  •     Noorish Superfoods chia seeds sold in Edmonton.

Brands recalled in the U.S. include:

  •     Green Smoothie Girl.
  •     Navitas Naturals.
  •     Williams-Sonoma.

As of Monday, the CDC said 21 illnesses had been reported in 12 U.S. states.

On Tuesday, the Public Health Agency of Canada said 34 cases of salmonella infection in British Columbia (6), Alberta (4), Ontario (22) and Quebec (2) have been investigated and linked to the consumption of chia seed powder.

Of the Canadian cases, five people were hospitalized, including four who’ve been discharged and have recovered or are recovering. The agency didn’t have status information for one case. No deaths have been reported.

Symptoms of salmonella include diarrhea, fever, and abdominal cramps 12 to 72 hours after infection.

"These products have a long shelf life and may still be in people's homes. If you have these brands of dried sprouted chia seed powder products in your home, do not eat them. Recalled products should be thrown out or returned to the store where they were purchased," the Public Health Agency of Canada advises on its website.

The U.S. illnesses were reported in Arizona, California, Colorado, Connecticut, Florida, Massachusetts, Michigan, New York, Ohio, Utah, Washington and Wisconsin.

With files from The Associated Press