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Heavy Metal Index

Aluminium content of infant formulae

This file is an author manuscript. Aluminium was measured after reconstitution according to the manufacturer instructions. The unit is µg l-1, written here as µg/L. It is not a powder concentration in mg/kg. Recovery was 96% to 104%. Detection limit 3.3 µg/L. Soya formula is a separate row and is not used for cow’s-milk formula.

Key numbers

Table 3, cow’s-milk-based types, µg/L.

TypenMeanMedian ± SDRange
Preterm7449421 ± 137317 to 726
Starter, non-adapted4237231 ± 128118 to 368
Starter, adapted16252196 ± 15268 to 573
Follow-up19292272 ± 18966 to 788

Specialised rows (without lactose, hypoallergenic, inborn errors) and the soya row are not copied onto the cow’s-milk page. The type-row counts in the full Table 3 sum to 82, while the methods also print powder n = 61 and ready-to-use n = 14. Both are printed.

Methods (brief)

Formula was reconstituted and aluminium was measured by atomic absorption. The detection limit is wet weight as printed for the formula matrix.

Evidence fitness

The four cow’s-milk rows support a reconstituted-formula aluminium note. They do not support a dry-powder mg/kg value or a soya value.

Limitations

Author manuscript. Specialised formulae are not treated as ordinary cow’s-milk formula. Sample-count statements disagree.

Update history

No substantive edit history is available in this build. The full commit record is available in git.