7. Ammonium Sulfate
Also Used As: Fertilizer — it’s a salt compound.
Found In: Some bread and flour products.
Ammonium sulfate is added to some bread and flour products to regulate acidity, particularly in breads at fast food restaurants. It’s generally safe to eat.
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Also Known As: Yellow #5, a synthetic food dye.
Found In: Sodas, cereals, candies, ice cream, pickles, cookies, macaroni and cheese… you name it.
More allergic reactions are caused by tartrazine than any other food dye. Though intolerance to the chemical is thought to be quite low, for those who are intolerant, symptoms like migraines, depression, itching and blurred vision have all been seen. It’s not entirely clear whether people who aren’t intolerant experience negative consequences from ingesting yellow #5, some research has suggested a link to behavioral issues, cancer and damaged organs. It’s banned in some areas of Europe, but legal (and regulated) in the United States and Canada.