Study finds more heart-event reports involving stimulant products

Health · First reported 7 Nov, 13:00 · Updated 13:49

Image: Wikimedia Commons · NASA Johnson Space Center · Public domain

A preliminary analysis of more than 28,000 FDA reports found that several cardiovascular events were reported more often with caffeine- and stimulant-containing products. The researchers say the observational data cannot show that the products caused the events, and the reports do not establish consumers’ level of risk.

Cardiac arrest appeared about 11 times as often in reports involving stimulant products; heart attacks about 4.5 times as often, and arrhythmias or palpitations about four times as often.
About 45% of reported cardiovascular events associated with stimulant products involved adults ages 18 to 34.
The findings are preliminary and based on voluntary reports; the analysis cannot prove causation or determine how likely consumers are to experience these events.

Summary written by Lux AI from 2 articles

Key facts

Reports analyzed: More than 28,000 FDA reports of cardiovascular events.
Cardiac arrest reports: About 11 times as often with caffeine- and stimulant-containing products as with products without those ingredients.
Age group: About 45% of reported cardiovascular events associated with stimulant products involved adults ages 18 to 34.
Study status: Preliminary; not yet published as a full peer-reviewed manuscript.
Adult caffeine guidance cited: Up to 400 milligrams per day, according to a 2026 American Heart Association scientific statement.