Figure 1

Micronutrient levels in adults (● age ≥ 18) and in children (■ age < 18) measured during 1987–2020. (A) Means (95% CI) of B-Mg and B-Zn. (B) Geometric means (95% CI) of fS-Q10 and S-D-25. The numbers of results varied from year to year: B-Mg (n = 130–2347 for adults and n = 8–165 for children); B-Zn (151–2523 and 8–201); fS-Q10 (725–1889 and 25–132); S-D-25 (800–1854 and 76–143).