You need to distinguish food and supplements. Supplements frequently fail quality tests, but I'm not aware of food constantly being off. As to "Why isn't that

You need to distinguish food and supplements. Supplements frequently fail quality tests, but I'm not aware of food constantly being off. As to "Why isn't that tested every single day by the government with big fines to stop it?" in the supplement industry, it's because the FDA isn't allowed to regulate supplements by law.