( ( Excess calories ) ( ( tend ( to ( ( be ( ( carbohydrates and ) fat ) ) ( , ( often ( ( dairy ( and ( wheat-based foods ) ) ) ( with ( high ( sugar content ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Excess) (NNS calories)) (VP (VBP tend) (S (VP (TO to) (VP (VB be) (ADJP (JJ carbohydrates) (CC and) (JJ fat)) (PRN (, ,) (ADVP (RB often)) (NP (NP (NN dairy) (CC and) (JJ wheat-based) (NNS foods)) (PP (IN with) (NP (JJ high) (NN sugar) (NN content))))))))) (. .)))
Excess calories tend to be carbohydrates and fat, often dairy and wheat-based foods with high sugar content.
(ROOT (S (NP (NP (DT The) (NN energy) (NN content)) (PP (IN of) (NP (NNS foods)))) (VP (VBZ is) (ADVP (RB often)) (VP (VBN expressed) (PP (IN in) (NP (NNS calories))))) (. .)))
The energy content of foods is often expressed in calories.