Correction to: Cai et al. Nutrition & Metabolism (2020) 17:8 https://doi.org/10.1186/s12986-020-0427-7

Following the publication of the original article [1], the authors identified errors in LC-MS/MS conditions section and Table 1. The changes have been highlighted in bold typeface.

Table 1 Conditions of triple quadrupole MS

The sentence currently reads:

The selected reaction monitoring transitions were m/z 383.3 → 365.1 [25(OH)D3], m/z 383.3 → 257.2 [3-epi-25(OH)D3], m/z 386.3 → 368.1[25(OH)D3-d3)], m/z 395.3 → 119.3 [25(OH)D2], m/z 395.3 → 377.3[3-epi25(OH)D2] and m/z 398.3 → 380.3 [25(OH)D2-d2].

The sentence should read:

The selected reaction monitoring transitions were m/z 383.3 → 365.1 [25(OH)D3], m/z 383.3 → 257.2 [3-epi-25(OH)D3], m/z 388.3 → 370.1[25(OH)VD3-13C5], m/z 395.3 → 119.3 [25(OH)D2], m/z 395.3 → 377.3[3-epi-25(OH)D2] and m/z 398.3 → 380.3 [25(OH)VD2-d3].

The author group has been updated above and the original article [1] has been corrected.