Licence: Public Domain Mark
Credit: Food in health and disease / By I. Burney Yeo. Source: Wellcome Collection.
Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.
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![Cliap. II.] J^UJVCTWJVS OP THE //yjJPOCAliBOys. regiiliitiug the temperature of tlie body, and keeping it constant. ° When, however, the temperature of the body itself IS disturbed, as in fever, then the higher the tempera- ture the greater tlie waste of the non-niti-ogenous, as well as of tlie nitrogenous, constituents of the,body, and the greater the excretion of carlionic acid, as well as of urea. It is 2Jrobably through the nervous system that the external temperature influences the metabolic processes in the body, and especially through the peripheral sensory nerves. It would appear that albuminates and fats are, to a certain extent, opposed to one another in their action on the organism, as the former increase waste and promote oxidation, while the latter have the ■ effect of diminishing them, and this they do pro- bably l)y affecting the metabolic activity of the cells of the tissues themseh'es. It is a matter of common observation that fat animals bear j^rivation of food lietter than thin ones ; in the latter, their small store ot tat ns quickly consumed, and then the albumen is rajnd y decomposed. It is for the same reason that corpulent persons, even on a very moderate amount of rood, are apt to become still more corpulent. The influence of fat in the storage of albumen is exemplified by the fact that if 1,-500 grammes of lean bn? f ;decomposed; but if 100 to 150 grammes of fat be added, then it V ill yield only 1,422 grammes of waste. It has also been shown that the balance of income and expendi- ture of albuminates, although the amount taken in the food may be very small, is readily established as soon tlrf -1 quantity of fat. A dog who took clai y 1,200 grammes of lean meat was observed to be still losing some of the albuminous constituents l ^00 grammes of flesh the nutritive balance was pidly le-estabhshed. The same has been observed HI man. Rubner found that an imlividual takim^](https://iiif.wellcomecollection.org/image/b2130371x_0031.jp2/full/800%2C/0/default.jpg)
