of, 492

Postoperative feeding, 316, 319, 320

Potassium, sources of in food, 6

Potato chips, fuel value of, 469
nutrient value of, 469

Potatoes, ash constituents of, 476
composition of, 492
food content of, 481
fuel value of, 469, 492
nutrient value of, 469
standard portion of, 481
vitamines in, 496

Potatoes stuffed with meat, preparation of, 130

Poultry, 112, and _see_ Meats

Pregnancy, 191
albuminuria in, 197
diet in, 192, 193, 194, 196, 197
nutritional disturbances in, 191

Premature infants, dilution of food for, 225
energy requirements of, 224
feeding of, 224, 225, 229

Pre-operative feeding, 312, 318, 320

Presbyterian Hospital diet list in typhoid fever, 292

Protein milk, preparation of, 142

Proteins, 17
alcohol-soluble, 21
calories in, 38
classification of, 19
composition of, 18
conjugated, 21
construction of, 19
effect of heat upon, 22,
enzymes acting upon, 171
excess of in infant's and children's food, 234
fate of, 183
function of in body, 23
metabolism, 183
in nephritis, 343
rate of digestion of, 173
requirements in body, 50
sources of, 4
tolerance of in diabetes, 381

Proudfit's menu for obesity, 429
reducing diet for obesity, 433, 434

Prune fig whip, preparation of, 139

Prunes, ash constituents of, 476
composition of, 492
food content of, 481
fuel value of, 469, 492
nutrient value of, 469
standard portion of, 481

Prunes and figs, preparation of, 143

Prune whip, preparation of, 139

Ptomaines, 66
poisoning by, 451
dietetic treatment for, 451, 452

Ptyalin, 171

Pumpkins, ash constituents of, 476
fuel value of, 469
nutrient value of, 469

Punch, milk, preparation of, 88

Purin bases, 184
content of food, 421

Purin-free diet, 63
in gout, 419

Purins, enzymes acting upon, 171

Quail, composition of, 492
fuel value of, 492

Radishes, ash constituents of, 476
food content of, 481
fuel value of, 469
nutrient value of, 469
standard portion of, 481

Raisins, ash constituents of, 476
composition of, 492
fuel value of, 469, 476
nutrient value of, 469
vitamines in, 497

Raspberries, ash constituents of, 476
composition of, 492
fuel value of, 470, 492
nutrient value o