That quantity of a given food which will supply just 100 calories is called the "100-calorie portion" or "standard portion." The following table gives standard portions of a number of common foods. It also shows how many calories out of the 100 are supplied by the protein, how many by the fat, and how many by the carbohydrate, in each food.

 Food Weight inOunces of100-CaloriePortion Number of Calories Supplied by Protein Fat Carbohydrate Beef rib, uncooked..... 1.8 42 58 0 Beef rib roasted 0.9 18 82 0 Leg of mutton, uncooked . . . 1.8 41 59 0 Leg of mutton, boiled .... 1.2 35 65 0 Lima beans, canned ............... 4.5 21 4 75 String beans, cooked ............... 16.7 15 48 37 Cabbage, uncooked .......... 11. 20 9 71 Potatoes, baked ............... 3. 11 1 88 Potatoes, boiled ................ 102. 11 1 88 Apples ................................. 7.5 2 6 92 Bananas ................................ 3.5 5 6 89 Milk.......... 4.9 19 52 29 Buttermilk ........................... 9.9 34 12 54 Butter .................................. 0.5 .5 99 0 Cheese ................................. .8 25 73 2 Eggs.......... 2.4 36 64 0 Honey ................................... 1. 1 0 99 Granulated sugar ...................... .9 0 0 100 Flour ............................................ .9 10.8 1 74.8 Bread ............................................... 1.3 14 4 82 Cornmeal .......................................... 1. 10 5 85 Tapioca, cooked ....................................... 3.9 1 1 98 Macaroni ................................. 1. 15 2 93 Macaroni, cooked .................. 3.9 14 15 71 Oatmeal......... .9 16 16 68 Oatmeal, cooked...... 5.6 18 7 75 Peanuts, shelled...... .6 19 63 18 Walnuts, shelled .................................. .5 10 83 7