But the issue is more than just not getting what you pay for.
"There's absolutely a public health risk," said John Spink, associate director for the Anti-Counterfeit and Product Protection Program (A-CAPPP) at Michigan State University. "And the key is the people that are unauthorized to handle this product, they are probably not following good manufacturing practices and so there could be contaminates in it."
Spink recommends purchasing from "suppliers, retailers, brands, that have a vested interest in keeping us as repeat customers."
Both the FDA and the Grocery Manufacturers Association say they take food adulteration "very seriously."
"FDA's protection of consumers includes not only regulating and continually monitoring food products in interstate commerce for safety and sanitation, but also for the truthfulness and accuracy of their labels," the FDA said in a statement to ABC News.
Most recently the FDA issued an alert for pomegranate juice mislabeled as 100 percent pomegranate juice, as well as one for the adulteration of honey.
The Grocery Manufacturers of America told ABC News in a statement that "ensuring the safety and integrity of our products – and maintaining the confidence of consumers – is the single most important goal of our industry," and that their members have "robust quality management programs and procedures in place, including analytical testing, to help ensure that only the safest and highest quality products are being offered to consumers."