Citrus Seeds Pose Digestive Risks If Consumed in Large Quantities

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While accidentally swallowing a stray citrus seed or two is not harmful, an expert advises against intentionally consuming large quantities of citrus seeds. Citrus seeds contain compounds that can release trace amounts of hydrogen cyanide if thoroughly chewed or crushed, potentially causing digestive discomfort or inflammation. The tough outer coating also makes the seeds largely indigestible, meaning they will typically pass through the body without providing nutritional value.

Why it matters

As citrus fruits become increasingly popular for their health benefits, some may be tempted to also consume the seeds. However, this expert guidance cautions against that practice, as it could lead to unintended negative health effects.

The details

Citrus fruits come from a family of evergreen trees and shrubs, and their seeds contain compounds called cyanogenic glycosides that can release small amounts of hydrogen cyanide if the seeds are thoroughly chewed or crushed. While a minor amount is not harmful, a large intake of these seeds could potentially cause digestive upset, nausea, headaches, or other symptoms. Additionally, the tough outer coating of citrus seeds makes them largely indigestible, meaning they will typically pass through the body without providing any nutritional value.

• The expert consultation took place in January 2026.

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