X-Message-Number: 19902 Date: Sun, 25 Aug 2002 12:25:22 -0700 (PDT) From: Doug Skrecky <> Subject: 5'th update on food satiation experiments This is the 5'th update on my food satiation experiments, in which I compare my own ad libitum calorie intake of various foods over a period of one day. Recently I examined the effect of caloric density on caloric intake of spagetti. Daily intake of high palatibility spagetti was 2938 calories. Mixing 1.25 liters of water with the spaggetti in a separate test on a different day yielded an intake of 2964 calories. However replacing the water with 1.09 liter of cauliflower reduced total intake to just 1576 calories, without changing palatibility. (Scalding the cauliflower, so that it remained firm was critical for maintaining palatability.) Substituting 1.03 liter of broccoli for the cauliflower yielded an intake of 1606 calories, but palatibility was reduced to medium levels. The amount of chewing, as well as the total time to consume the spagetti was increased when cauliflower, or broccoli, but not water was added. At another extreme I tried eating nothing but low palatability blanched almonds all day. To my great surprise intake was the lowest in the test, at 1320 calories. I have found that decreasing caloric density usually reduces intake in medium and high palatability foods. Apparently the key factor is the time taken to eat the food. In contrast low caloric density exerts no beneficial effect in low palatability foods. The two lowest intakes were for almonds, and rye bread. Both of these foods were eaten mostly during snacks, and major meals were themselves spontaneously replaced by large snacks. It appears snacking a lot may slightly reduce intake of low palatability foods. (LOW PALATABILITY) CALORIC FOOD DENSITY INTAKE ___________________________________________________ almonds high 1320 rye bread medium 1388 Gala apples low 1413 chicken breast low 1478 rye crispbread high 1564 rice cake with turkey, mustard low 1602 vegetables/cottage cheese very low 1768 potato (skipped lunch next day) low 2179 average: 1589 MEDIUM PALATABILITY) CALORIC FOOD DENSITY INTAKE ___________________________________________________ spagetti & 1.02 liter broccoli low 1606 yogurt, fruit, no fat & Gala apples low 1976 2% fat chocolate milk medium 2100 yogurt, fruit, sugar, fat medium 2354 rye sandwich with turkey, mustard medium 2371 peanuts (malabsorption) high 2689 average: 2183 (HIGH PALATABILITY) CALORIC FOOD DENSITY INTAKE ___________________________________________________ yogurt, fruit, no fat low 1483 spagetti & 1.09 liter cauliflower low 1576 angel food cake, jam medium 2936 spagetti medium 2938 spagetti & 1.25 liter water low 2964 cookies & chili high 4055 average: 2659 Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19902