This section of the book is from the "Handbook of Nature Cure Volume One: Nature Cure vs. Medical Science" book, by John L. Fielder.
To see how essentially unnatural is that teaching, watch your dog. When he is sick he goes away by himself into a corner, and refuses to look at food. Leave him to himself for some hours, or even two or three days, and he will come bouncing back stronger and fitter that ever. That is always presuming that you have not insisted upon feeding him "health foods", taking him for walks, or giving him medicines.
If he lives in your home and eats the same kind of food as you do, he will probably take on your kind of ailments, so keep your eyes open and learn how to apply the correct treatment. Watch the splendid results he obtains if you leave him alone. Note how frisky he is after his illness—his "house cleaning".