Many store-bought herb blends are past their prime–meaning you don’t benefit from their full flavor or health-promoting plant compounds.
Data released by the CDC shows that 29% of common household spices contain problematic levels of lead. Instead, consider buying fresh herbs (or growing your own!) and crushing them as needed with a mortar and pestle. Not only is it more tasty, but grinding your own herbs also releases the volatile oils that contain health-promoting aromatic qualities.