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. 2024 Sep 11;16(18):3060. doi: 10.3390/nu16183060

Figure 4.

Figure 4

Serum 25(OH)D levels of patients with and without routine vitamin D intake in correlation to the season [spring (March–May): n = 54 no intake (19.08 ng/mL) and n = 14 (39.07 ng/mL) for intake; summer (June–August): n = 44 no intake (20.70 ng/mL) and n = 12 (41.75 ng/mL) for intake; autumn (September–November): n = 40 no intake (20.05 ng/mL) and n = 15 (45.13 ng/mL) for intake; winter (December–February): n = 53 no intake (20.15 ng/mL) and n = 16 (37.69 ng/mL) for intake]. Asterisk marks significant differences in serum 25(OH)D (p < 0.05).