Vermicelli is a highenergydense food Energy density refers to the number of calories a food contains compared to its weight The vermicelli contains 35 calories per gram compare that to a lowenergydense food such as broccoli which has 05 calories per gram Highenergydense foods are not as filling as lowenergydense foods and if youre not careful you might eat more calories than you intended Eating the vermicelli as part of a brothbased soup such as the Vietnamese pho can help fill you up so you eat fewer noodles