The physiology of digestion considered with relation to the principles of dieteticsCombe, Andrew
Science
The physiology of digestion considered with relation to the principles of dietetics
Combe, Andrew
Diet; Digestion
Man, being naturally omnivorous, or adapted for the digestion of both
animal and vegetable substances, holds, as it were, an intermediate
place in regard to the rapidity of mastication. He is neither obliged
to ruminate like the cow, nor can he beneficially bolt his food with
the rapidity displayed by birds of prey. His object is merely to reduce
the alimentary mass to a soft and pulpy consistence, and digestion is
promoted or retarded in exact proportion as he approaches or falls
short of this point. Hasty mastication is consequently injurious,
because it prevents the food from being sufficiently broken down and
impregnated with saliva; and the more uncommon error of protracted
mastication is also injurious, owing to the undue dilution which the
mass sustains from the overflow of the salivary secretion.
Due mastication being thus essential to healthy digestion, the
Creator, as if to insure its being adequately performed, has kindly
so arranged, that the very act of mastication should lead to the
gratification of taste--the mouth being the seat of that sensation.
That this gratification of taste was intended, becomes obvious when
we reflect that, even in eating, Nature makes it our interest to give
attention to the process in which we are for the time engaged. It
is well known, for example, that when food is presented to a hungry
man, whose mind is concentrated on the indulgence of his appetite,
the saliva begins to flow unbidden, and what he eats is consumed
with a peculiar relish and is easily digested. Whereas, if food be
presented to an individual who has fasted equally long, but whose
soul is absorbed in some great undertaking or deep emotion, and who
is consequently insensible to the gratification of taste, it will be
swallowed almost without mastication, and without sufficient admixture
with the saliva--now deficient in quantity--and therefore lie on the
stomach for hours unchanged. In this point of view the peculiarly
English custom of reading the newspapers or magazines _during_
breakfast is more hurtful than one would suppose; and many dyspeptics
have been surprised at the benefit resulting from its discontinuance.
However, therefore, philosophy and morality condemn the _undue_
cultivation of our bodily appetites, it cannot be denied that a certain
degree of attention to taste, and to the pleasures of appetite, is both
reasonable and beneficial; and it is only when these are abused that we
oppose the intentions of Nature.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account