Table 1

Food groups and reference groups created from individual food items collected in the comprehensive Diet History, India Health Study

Food groups

Reference groups

Food items

Example:

Example of reference groups for rice:

Examples of food items for the reference group "plain rice":

Rice

Plain rice

Basmati rice

Fermented rice

White-milled rice

Fermented rice dish with

Brown rice

Pulses

Rice Bhakri

Plain rice dish with pulses

Oratti

Mixed rice dish

Kanji Rice

Puttu

Idiappam

Daniel et al. Nutrition Journal 2011 10:12   doi:10.1186/1475-2891-10-12