Dietary/supplement assessment of average vitamin D intake by patients with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) compared with healthy control (HC) individuals
| HC | CFS/ME | p Value | |
| Average vitamin D intake—diet (µg/day) | 2.9±2.1 | 2.4±1.6 | 0.6 |
| Average vitamin D intake—supplements (µg/day) | 0.6±1.7 | 4.9±9.7 | 0.05 |
Data are presented as mean ±SD.