Relationships between per capita B-vitamin consumption and energy and protein consumption in the US. A-F: Correlations between the consumption niacin, thiamin and riboflavin and the consumption of energy and protein in the US. The data on per capita consumption of energy and the main nutrients were derived from the databases of the ERS of the US (Ref. ). The 11-year lag-regression results are presented in each panel.
Zhou et al. BMC Public Health 2010 10:746 doi:10.1186/1471-2458-10-746