( ( ( ( ( Carbohydrate-based ( fat replacers ) ) ( therefore ( have ( ( four calories ) ( per gram ) ) ) ) ) but ) ( many ( ( provide ( ( ( ( ( ( significantly fewer ) calories ) , ) ( often ( ( only ( one calorie ) ) ( per gram ) ) ) ) , ) ( as used ) ) ) ( -LRB- ( ( mixed ( with water ) ) -RRB- ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Carbohydrate-based) (JJ fat) (NNS replacers)) (ADVP (RB therefore)) (VP (VBP have) (NP (NP (CD four) (NNS calories)) (PP (IN per) (NP (NN gram)))))) (CC but) (S (NP (DT many)) (VP (VBP provide) (S (NP (NP (ADJP (RB significantly) (JJR fewer)) (NNS calories)) (, ,) (RRC (ADVP (RB often)) (NP (NP (RB only) (CD one) (NN calorie)) (PP (IN per) (NP (NN gram))))) (, ,)) (ADJP (RB as) (JJ used))) (PRN (-LRB- -LRB-) (ADJP (VBN mixed) (PP (IN with) (NP (NN water)))) (-RRB- -RRB-)))) (. .)))
Carbohydrate-based fat replacers therefore have four calories per gram but many provide significantly fewer calories, often only one calorie per gram, as used (mixed with water).
(ROOT (S (NP (NP (CD One) (NN gram)) (PP (IN of) (NP (NNS proteins)))) (VP (VBZ provides) (NP (NP (CD four) (NNS calories)) (PP (IN of) (NP (NN energy))))) (. .)))