What was reviewed
This EFSA communication summarises an expert risk-assessment review that set an aluminium tolerable weekly intake (TWI) for aluminium from all sources in food and compared typical European dietary exposures against that health-based guidance value. The review synthesised “all available studies,” with particular weight on animal evidence showing adverse effects on the nervous system and reproductive/developmental endpoints, and then translated those toxicology signals into a lifetime-safe weekly intake because aluminium can persist in the body. For HMTC, the key value is the aluminium tolerable weekly intake of 1 mg/kg body weight per week, which acts as a regulatory anchor for interpreting cumulative exposure from foods, additives, and food-contact materials.
Who was reviewed
Rather than enrolling participants, EFSA reviewed dietary exposure datasets and toxicology studies relevant to the European population, drawing exposure evidence from several European countries (explicitly including the Netherlands, France, the UK, and Sweden). The exposure assessment considered different population groups, with specific reporting for adults, children and young people, and mention of some infant formulae as contributors in certain diets. Because the underlying dietary studies and analytical approaches could not reliably apportion aluminium to individual sources, the review focused on total aluminium intake from food while acknowledging that exposures may also arise from pharmaceuticals and consumer products.
Most important findings
Using the aluminium tolerable weekly intake framework, EFSA concluded that a meaningful portion of consumers could exceed the TWI, especially in higher-exposure subgroups, and that large person-to-person variability makes “typical” intake a poor proxy for risk management in sensitive groups. For an HMTC program, the most actionable outcomes are the numerical TWI, the reported exposure ranges by age group, the identification of key dietary contributors, and the explicit data gaps that prevent source attribution—because certification often needs to distinguish “natural background” from additive- or contact-derived aluminium.
| Critical point | Details |
|---|---|
| Health-based limit established | EFSA set a tolerable weekly intake (TWI) of 1 mg aluminium/kg body weight/week, favoring weekly guidance because aluminium can persist in the body. |
| Exceedance risk flagged | Experts estimated that aluminium intakes may exceed the TWI in a significant part of the European population, implying that cumulative exposure management—not just single-product limits—matters. |
| Reported exposure ranges by age | Mean adult dietary exposure ranged 0.2–1.5 mg/kg bw/week; in children and young people, highest exposures ranged 0.7–2.3 mg/kg bw/week, overlapping and exceeding the TWI. |
| Main dietary contributors identified | Largest contributors were cereals/cereal products, vegetables (examples include mushrooms, spinach, radish, lettuce), beverages (tea, cocoa), and some infant formulae; drinking water was a minor source. |
| Sources acknowledged but not separable | Aluminium originates from natural occurrence, aluminium-containing food additives, and food-contact materials (pots, pans, foil), yet available human dietary studies could not quantify each source’s share. |
| Evidence base and limitations | The TWI relied on combined animal evidence showing effects on testes, embryos, and developing/mature nervous system, while noting study limitations and few specific studies on individual aluminium-containing additives. |
Key implications
For HMTC, the aluminium tolerable weekly intake (1 mg/kg bw/week) should function as a certification benchmark that connects product-level aluminium measurements to population exposure, pushing regulators toward cumulative, diet-wide risk management and not isolated limits. Certification requirements should emphasise validated testing for high-contributor categories and vulnerable diets, plus documentation that distinguishes likely sources when feasible (ingredients/additives vs. contact materials), even though EFSA noted current methods often cannot apportion sources. Industry can apply this by reducing aluminium-containing additive use where possible, controlling migration from aluminium food-contact materials, and prioritising cereals, certain vegetables, beverages, and infant products for monitoring. The biggest research gap is source-attribution data and additive-specific studies; practical recommendations include tighter analytical standardisation, routine migration testing, and risk communication targeted to high-exposure consumers.
Citation
European Food Safety Authority (EFSA). (2008, July 15). EFSA Advises on the Safety of Aluminium in Food. European Food Safety Authority.
Aluminum is a pervasive metal found in a wide range of consumer products, from food packaging and cookware to medications and personal care items. Although often overlooked, aluminum exposure can accumulate over time, posing long-term health risks, especially to vulnerable populations like infants, children, and individuals with kidney conditions.