Alkaloids are naturally occurring chemical compounds found primarily in plants that contain nitrogen atoms. The name “alkaloid” comes from the word “alkaline,” referring to their basic (non-acidic) chemical properties.
Common examples: Caffeine (found in coffee and tea), nicotine (found in tobacco), morphine (from opium poppies), and berberine (from goldenseal and barberry plants).
Why they matter: Many alkaloids have powerful physiological effects on the human body. Some act as stimulants, others as pain relievers, and some have antimicrobial or anti-inflammatory properties. Caffeine, for instance, stimulates the central nervous system and increases alertness, while berberine has been studied for its potential benefits in blood sugar regulation and cardiovascular health.
In supplements: Alkaloid-containing supplements include caffeine pills, berberine capsules, and various herbal extracts standardized for their alkaloid content.