[Testimonies for the Church 2:362-364 (1869).]
(CH 157)
Many who have adopted the health reform have left off everything hurtful; but does it follow that because they have left off these things, they can eat just as much as they please? They sit down to the table, and instead of considering how much they should eat, they give themselves up to appetite and eat to great excess. And the stomach has all it can do, or all it should do the rest of that day, to worry away with the burden imposed upon it. All the food that is put into the stomach, from which the system cannot derive benefit, is a burden to nature in her work. It hinders the living machine. The system is clogged and cannot successfully carry on its work. The vital organs are unnecessarily taxed, and the brain nerve power is called to the stomach to help the digestive organs carry on their work of disposing of an amount of food which does the system no good.
(CH 157.1)
Thus the power of the brain is lessened by drawing so heavily upon it to help the stomach get along with its heavy burden. And after it has accomplished the task, what are the sensations experienced as the result of this unnecessary expenditure of vital force? A feeling of goneness, a faintness, as though you must eat more. Perhaps this feeling comes just before mealtime. What is the cause of this? Nature has worried along with her work and it so thoroughly exhausted in consequence that you have this sensation of goneness. And you think that the stomach says, “More food,” when, in its faintness, it is distinctly saying, “Give me rest.”
(CH 157.2)
The Stomach Needs Periods of Rest
The stomach needs rest to gather up its exhausted energies for another work. But instead of allowing it any period of rest, you think it needs more food, and so heap another load upon nature and refuse it the needed rest. It is like a man laboring in the field all through the early part of the day until he is weary. He comes in at noon and says that he is weary and exhausted; but you tell him to go to work again and he will obtain relief. This is the way you treat the stomach. It is thoroughly exhausted. But instead of letting it rest, you give it more food, and then call the vitality from other parts of the system to the stomach to assist in the work of digestion.
(CH 158.1)
Many of you have at times felt a numbness around the brain. You have felt disinclined to take hold of any labor which required either mental or physical exertion, until you have rested from the sense of this burden imposed upon your system. Then, again, there is this sense of goneness. But you say it is more food that is wanted, and place a double load upon the stomach for it to care for. Even if you are strict in the quality of your food, do you glorify God in your bodies and spirits, which are His, by partaking of such a quantity of food? Those who place so much food upon the stomach, and thus load down nature, could not appreciate the truth should they hear it dwelt upon. They could not arouse the benumbed sensibilities of the brain to realize the value of the atonement and the great sacrifice that has been made for fallen man. It is impossible for such to appreciate the great, the precious, and the exceedingly rich reward that is in reserve for the faithful overcomers. The animal part of our nature should never be left to govern the moral and intellectual.
(CH 158.2)
And what influence does overeating have upon the stomach? It becomes debilitated, the digestive organs are weakened, and disease, with all its train of evils, is brought on as the result. If persons were diseased before, they thus increase the difficulties upon them and lessen their vitality every day they live. They call their vital powers into unnecessary action to take care of the food that they place in their stomachs.
(CH 159.1)