Those who use flesh meats freely do not always have an unclouded brain and an active intellect, because the use of the flesh of animals tends to cause a grossness of body and to benumb the finer sensibilities of the mind. The liability to disease is increased by flesh eating. We do not hesitate to say that meat is not essential to the maintenance of health and strength.
(CH 115.1)
MC
VC
Those who subsist largely upon meat cannot avoid sometimes eating flesh which is more or less diseased. In many cases the process of fitting animals for market produces an unhealthy condition. Shut away from light and pure air, inhaling the atmosphere of filthy stables, the entire body soon becomes contaminated with foul matter; and when such flesh is received into the human body it corrupts the blood, and disease is produced. If the person already has impure blood, this unhealthful condition will be greatly aggravated. But few can be made to believe that it is the meat they have eaten which has poisoned their blood and caused their suffering. Many die of diseases wholly due to meat eating, when the real cause is scarcely suspected by themselves or others. Some do not immediately feel its effects, but this is no evidence that it does not hurt them. It may be doing its work surely upon the system, yet for the time being the victim may realize nothing of it.
(CH 115.2)
MC
VC