Aluminium
The short version
Metallic aluminium leaf or powder — a decorative finish on cake decorations and pills.
It's permitted and generally considered safe, but there are a few reasons to be mindful — like sensitivities in some people, debated studies, or intake limits. The Safety section below explains the specifics.
Safety profile
ADI of 0–1 mg/kg body weight (combined aluminium, EFSA 2008 lowered the limit). The metallic decorative use contributes very little to total aluminium intake compared with naturally aluminium-containing foods (tea, herbs) and aluminium-containing leavening agents. Recurring popular-press concerns about aluminium and Alzheimer's disease have not been substantiated by systematic-review evidence.
Educational information only. Not medical or dietary advice.