Are black olives safe to eat?

Black olive producers have been deceiving consumers by dyeing green olives black to give the appearance of ripened olives. Many canned black olives are actually green olives treated with chemicals like lye and ferrous gluconate to darken and preserve them quickly. These additives may have potential side effects, including gastrointestinal discomfort and allergic reactions. To avoid these chemicals, opt for naturally fermented olives labeled as such at natural food stores. You can also make your own olives by sourcing fresh olives from Mediterranean markets or olive groves. By being mindful of what you consume, you can enjoy the true benefits of olives without harmful additives.