Results: Greater accordance with the DASH dietary targets was
associated with lower GHGs. Diets in the highest quintile of accordance
had a GHG impact of 5.60 compared with 6.71 kg carbon
dioxide equivalents/d for least-accordant diets (P , 0.0001).
Among the DASH food groups, GHGs were most strongly and
positively associated with meat consumption and negatively with
whole-grain consumption. In addition, higher accordance with the
DASH diet was associated with higher dietary costs, with the mean
cost of diets in the top quintile of DASH scores 18% higher than
that of diets in the lowest quintile (P , 0.0001).