Tag: Indigofera tinctoria

While indigo is commonly known as a vibrant blue dye, the edibility of its leaves depends entirely on the plant species. Many varieties used for natural dye are actually toxic to humans and animals, while others, like Japanese indigo, have edible properties when properly prepared. This guide clarifies the important distinctions.

Used for centuries for its vibrant blue pigment, indigo also holds a rich history in traditional medicine and spiritual practices across many cultures. Derived from the Indigofera plant, infusions of indigo with water are prepared in various ways to offer numerous benefits, from enhancing hair health and revitalizing skin to spiritual purification.

In many cultures, natural indigo dye has been used for centuries to color textiles, yet some indigo species are toxic if ingested. It is crucial to understand that not all substances referred to as "indigo" are safe for consumption, as the term applies to several different compounds with varying safety profiles.

Food and safety authorities in many regions, including the U.S. and Europe, have approved the synthetic dye indigo carmine (FD&C Blue No. 2) for limited use in food products. This fact, however, does not mean all forms of indigo are safe to consume, begging the question: Is indigo safe to consume? The answer is nuanced, depending on the source, processing, and intended use of the substance.