Food Energy Density Classification (by British Nutrition Foundation)

Very low energy density foods = less than 0.6 calories/gram

Example: Cabbahe raw  -- 22 kcal/100grams = 0.22 kcal/gram

Example: Spinach raw  -- 23 kcal/100grams = 0.23 kcal/gram

Example: Carrot raw  -- 41 kcal/100grams = 0.41 kcal/gram

Example: Papaya, raw -- 43 kcal/100grams = 0.43 kcal/gram

Example: Apple raw without skin -- 48 kcal/100grams = 0.48 kcal/gram

Example: Oranges, raw, navels -- 49 kcal/100grams = 0.49 kcal/gram

Example: Pineapple, raw -- 50 kcal/100grams = 0.50 kcal/gram

Low energy density foods = 0.6 to 1.5 calories/gram

Example: Banana raw  -- 89 kcal/100grams =0.89 kcal/gram

Example: Avocado -- 120 kcal/100grams  = 1.20 kcal/gram

Medium energy density foods = 1.5 to 4 calories/gram

Example: Fish, sardine, Pacific, canned in tomato sauce, drained solids with bone -- 185 kcal/100grams = 1.85 kcal/gram

Example: Fish, mackerel, Atlantic, raw -- 205 kcal/100grams = 2.05 kcal/gram

Example: Buckwheat  -- 343 kcal/100grams =3.43 kcal/gram

High energy density foods = more than 4 calories/gram

Example: Cashew nuts, raw -- 553kcal/100grams = 5.53 kcal/gram

Example: Sesame seeds, whole, dried -- 573 kcal/100grams = 5.73 kcal/gram

Example: Nuts, almond -- 579 kcal/100grams = 5.79kcal/gram

Example Brazil nuts, dried, unblanche -- 656 kcal/100grams = 6.56 kcal/gram

Example: One table spoon (13.6 grams) of vegetable cooking oil -- 120 kcal = 8.82 kcal/gram

Adapted from : http://www.nutrition.org.uk/healthyliving/fuller/what-is-energy-density