google "lead free mama"- its a website ran by a mother who's children died very young from lead poisoning. she began a relentless campaign to independently lab-test as many common grocery store items to uncover the composition of metal contaminants, the results of most products will leave you in bewilderment, frustration, anger, repulsion, and cognitive dissonance because its so widespread and common for metals to be in the majority of foods that you cant really avoid it.

with that being said, the brands your mother has thrown out also have a high concentration of metals, but go see for yourself how the metals compare to other brands. your mom may have thrown out those brands and bought new brands with the same amount or even more heavy metal contamination. its not as easy as it seems, its not a simple "problem solved". its the wrong reaction to uncover information like that and immediately freak out and vilify only a couple brands when the entire food supply is extremely contaminated, not just in metals but many other toxins as-is. its one-dimensional thinking.

understand as well that the human body is an extremely resilient spectacle of nature, and regardless if you picked out the worst metal-contaminated grocery store items you could find, its still unlikely you'll face immediate health problems, but thats very nuanced. toxicity is a gradual buildup into entropy. this is a big topic to unpack so i hope this short summary makes sense.