A Civic Biology, Presented in ProblemsHunter, George W. (George William)
Science
A Civic Biology, Presented in Problems
Hunter, George W. (George William)
Biology; Sanitation
On the other hand, we know that although alcohol may technically be
considered as a food, it is a very unsatisfactory food and, as the
following statements show, it has an effect on the body tissues which foods
do not have.
Professor Chittenden of Yale College, in discussing the food problem of
alcohol, writes as follows:
"It is true that alcohol in moderate quantities may serve as a food,
_i.e._ it can be oxidized with the liberation of heat. It may to some
extent take the place of fat and carbohydrates, but it is not a
perfect substitute for them, and for this reason alcohol has an action
that cannot be ignored. It reduces liver oxidation. It therefore
presents a dangerous side wholly wanting in carbohydrates and fat. The
latter are simply burned up to carbonic acid and water or are
transformed to glycogen and fat, but alcohol, although more easily
oxidized, is at all times liable to obstruct, in a measure at least,
the oxidative processes of the liver and probably of other tissues
also, thereby throwing into the circulation bodies, such as uric acid,
which are harmful to health, a fact which at once tends to draw a
distinct line of demarcation between alcohol and the two
non-nitrogenous foods, fat and carbohydrates. Another matter must be
emphasized, and it is that the form in which alcohol is taken is of
importance. Port wine, for instance, has more influence on the amount
of uric acid secreted than an equivalent amount of alcohol has in some
other form. To conclude: as an adjunct to the ordinary daily diet of
the healthy man alcohol cannot be considered as playing the part of a
true non-nitrogenous food."--Quoted in _American Journal of
Inebriety_, Winter, 1906.
Effect of Alcohol on Living Matter.--If we examine raw white of egg, we
find a protein which closely resembles protoplasm in its chemical
composition; it is called albumen. Add to a little albumen in a test tube
some 95 per cent alcohol and notice what happens. As soon as the alcohol
touches the albumen the latter coagulates and becomes hard like boiled
white of egg. Shake the alcohol with the albumen and the entire mass soon
becomes a solid. This is because the alcohol draws the water out of the
albumen. It has been shown that albumen is somewhat like protoplasm in
structure and chemical composition. Strong alcohol acts in a similar manner
on living matter when it is absorbed by the living body cells. It draws
water from them and hardens them. It has a chemical and physical action
upon living matter.
Alcohol a Poison.--But alcohol is also in certain quantities a poison. _A
commonly accepted definition of a poison is that it is any substance which,
when taken into the body, tends to cause serious detriment to health, or
the death of the organism._ That alcohol may do this is well known by
scientists.
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