Being “mostly vegan” is like being “a little pregnant.”

A large number of vegans and vegetarians, according to available data, occasionally cheat by eating various animal foods. I know a vegan who eats fish, which technically would make her pegan, but she is attached to identifying as vegan. The majority who try these “plant-based” diets, the data also shows, don’t maintain them beyond a short period of time. It’s a small minority that remain on such restrictive diets.

It’s yet to be demonstrated if veganism, strictly maintained with no instance of cheating, can even be maintained beyond a single generation. That infertility is so common among vegans (and also vegetarians) is an indicator that long-term survival is unlikely. That is similar to what Francis M. Pottenger Jr. discovered when cats were fed contrary to the diet they evolved eating. “By the third generation, they didn’t reach adulthood. There was no generation after that” (Health From Generation To Generation).

Another researcher from earlier last century, Weston A. Price studied healthy populations following traditional diets. In his search, he traveled to every continent and he specifically looked for those adhering to an entirely plant-based diet, but he could find no example anywhere in the world. He did find cannibals. Every healthy population ate large amounts of high quality animal foods, typically not long pig though.

* * *

Interpreting the Work of Dr. Weston A. Price
from Weston A. Price Foundation

One of the purposes of Price’s expedition to the South Seas was to find, if possible “plants or fruits which together, without the use of animal products, were capable of providing all of the requirements of the body for growth and for maintenance of good health and a high state of physical efficiency.” 12 What he found was a population that put great value on animal foods–wild pig and seafood–even groups living inland on some of the larger islands. Even the agricultural tribes in Africa consumed insects and small fish–and these groups were not as robust as the tribes that hunted, fished or kept herds.

“It is significant,” said Price, “that I have as yet found no group that was building and maintaining good bodies exclusively on plant foods. A number of groups are endeavoring to do so with marked evidence of failure.”13

12. Weston A. Price, Nutrition and Physical Degeneration, PPNF, p 109.
13. Weston A. Price, Nutrition and Physical Degeneration, PPNF, p 282.

Studies of Relationships Between Nutritional Deficiencies and (a) Facial and Dental Arch Deformities and (b) Loss of Immunity to Dental Caries Among South Sea Islanders and Florida Indians.
by Weston A. Price

The native foods in practically all the South Sea Islands consisted of a combination of two types; namely, plant foods and sea foods. The former included the roots and tops of several tubers and a variety of fruits. The sea foods consisted chiefly of small forms, both hard- and soft-shelled, and invertebrates, together with fish of various types.

One of the purposes of this trip was to find, if possible, native dietaries consisting entirely of plant foods which were competent for providing all the factors needed for complete and normal physical development without the use of any animal tissues or product.

A special effort was accordingly made to penetrate deeply into the interior of the two largest Islands where the inhabitants were living quite remote from the sea, with the hope that groups of individuals would be found living solely on a vegetarian diet. Not only were no individuals or groups found, even in the interior, who were not frequently receiving shell fish from the sea, but I was informed that they recognized that they could not live over three months in good health without getting something from the sea. A native interpreter informed me that this had been one of the principal causes of bitter warfare between the hill tribes and coast tribes of that and all of the Pacific Islands, since the hill people could not exist without some sea foods to supplement their abundant and rich vegetable diet of the mountain country.

He informed me also that even during the periods of bitter warfare the people from the mountain district would come down to the sea during the night and place in caches delicious plants which grew only at the higher altitudes. They would return the following night to obtain the sea foods that were placed in the same caches by the people from the sea. He stated that even during warfare these messengers would not be captured or disturbed.

This guide and many others explained to me that cannibalism had its origin in the recognition by the hill people that the livers and other organs of their enemies from the coast provided the much needed chemicals which were requisite to supplement the plant foods. Several highly informed sons of cannibals and a few who acknowledged that they had eaten “long pig” advised me that it was common knowledge that the people who had lived by the sea and who had been able to obtain lots of sea foods, particularly the fishermen, were especially sought for staying a famine. One native told me of having left an Island where he was engaged in fishing because of a tip that came to him that his life was in danger because of his occupation.

Weston Price Looked for Vegans But Found Only Cannibals
by Christopher Masterjohn

This experience is, in part, a testament to the extraordinary nutrition packed into shellfish.  Melissa McEwen recently wrote about this in her post “Being Shellfish,” where she noted that some shellfish are not only more nutritious than meat, but exhibit such a dearth of evidence for sentience and the capacity for suffering that some otherwise-vegans argue that eating shellfish is consistent with the basic ethics of veganism. […]

Ultimately, what this story makes especially clear is that there is an enormous difference between a small amount of animal products and no animal products.  Being “mostly vegan” is like being “a little pregnant.”  As I pointed out in my response to Dr. T. Colin Campbell and my review of Dr. Joel Fuhrman’s Eat to Live, animal products that constitute two percent or ten percent of a person’s diet may make or break the healthfulness of the diet, especially if that small percentage is something incredibly nutrient-dense like clams or oysters.

If someone achieves vibrant health on a vegan diet, I will be happy for them.  We should face the facts, however, that humans with limited access to animal products have often gone to great lengths to include at least some animal products in their diet.  And they’ve done that for a reason.

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