Here's some value for onions and peppers: green, red, yellow;
Onions
Raw, average (1 medium/180g) = 55kcal - 0.3 fat / nutrition values per 100g/100ml = 31kcal, 1.3 prot, 6.0 carb, 0.2 fat, 1.4 fibre
Red raw,average (1 med/180g) = 66kcl - 0.4 fat / nutrition values per 100g/100ml = 37kcal, 1.2...