Theobromine
Morning
Theobromine is a methylxanthine alkaloid naturally abundant in cacao beans, and present in smaller amounts in tea and yerba mate. It is structurally similar to caffeine but produces gentler, longer-lasting stimulant effects due to its slower metabolism and weaker central nervous system activity. Theobromine has been used historically in traditional medicine and is increasingly studied for its cardiovascular and cognitive effects.
Research Evidence
May modestly reduce blood pressure through vasodilation
ModerateProvides mild, sustained stimulant effects with less anxiety than caffeine
ModerateCould support bronchodilation and respiratory function
LimitedMay enhance mood and cognitive alertness
LimitedMay improve endothelial function and blood flow
ModerateSafety & Cautions
Side Effects
- Mild nausea at higher doses
- Headache
- Increased heart rate
- Digestive discomfort
- Sleep disruption if taken late in the day
Theobromine is generally well-tolerated at typical supplemental doses, though individuals sensitive to stimulants should start with a lower dose. It is toxic to dogs and cats, so supplements should be stored securely away from pets.
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