Dr. Natasha Campbell-McBride connects traditional diets and climate with different proportions of plant and animal foods. In Gut and Physiology Syndrome, she describes warmer-climate patterns as more plant-heavy and colder-climate patterns as relying more on animal foods and fat. She also places weather within a much wider discussion of individual food needs.[1][2]
The useful point for a GAPS meal plan is that food proportions can change. The historical argument does not create another allowed-food list or remove the preparation and digestive-readiness rules from the approach you are following.
The Climate Argument in the Book
In the vegetarian chapter, Campbell-McBride describes traditional vegetarianism as a hot-climate pattern. She explains it through a greater need for cleansing in hot weather and a greater need for feeding foods in cold weather. In her account, colder climates call for more animal protein and a higher fat content.[1]
This is her historical and physiological argument in that chapter. Her broader bio-individuality discussion says climate is one influence among many, rather than a way to assign everyone a permanent diet from where they live.
The Traditional Diets She Describes
The book draws on Weston A. Price’s early twentieth-century study of traditional food cultures. Campbell-McBride describes warmer-environment diets containing more grains, starchy vegetables, fruit and legumes, supplemented by local animal foods. Her colder-environment examples emphasize oily fish, full-fat dairy and fatty meats, with less plant matter.[2]
She connects these differences with the immediate environment, available food, climate and activity. The plant-heavy patterns in that discussion still include animal foods. They should not be relabeled as plant-only diets.
Those historical examples include grains and starches outside the ordinary GAPS food list. Their presence in a traditional-diet discussion does not make them early GAPS foods. The More-Plant guide keeps the named GAPS vegetable choices and separate coming-off sequence clear.
Travel, Season and Appetite
Campbell-McBride describes people from warm-climate food cultures wanting more animal food after moving somewhere colder. In the other direction, she describes visitors to tropical places preferring more fruit and raw salads. These examples illustrate the influence she assigns to weather and environment.[1]
The related chapter adds season, stress, activity, age and changing internal conditions to the discussion. It uses desire for food, smell, taste and satisfaction after eating as ways to pay attention to current needs. It also says processed foods can distort those signals.[2]
A desire for a raw salad still has to meet the readiness guidance for raw plants. If raw food brings bloating, crampy pain or abnormal stool, the More-Plant chapter says to wait and focus on cooked plants instead.[3]
Individual Needs Are More Than Ancestry
The bio-individuality chapter traces this discussion through Roger Williams’ Biochemical Individuality and later metabolic-typing work. It describes modern families as having mixed ancestral backgrounds and says even siblings can differ in their nutritional needs. It also discusses the limitations of metabolic typing and the difficulty of fixing one ratio for changing daily circumstances.[2]
Read that alongside the climate examples. They explain Campbell-McBride’s approach to variation, but they do not give you a reliable meal plan just from an ancestry label or a temperature reading. The book keeps the individual person and their current digestive state in the discussion.
Using the Idea in Meal Planning
When your appetite changes, consider the current GAPS approach and the food forms you can digest. Campbell-McBride also gives a specific natural-food exception in her bio-individuality chapter. Her example is someone following Intro Stage 1 or 2, feeling well, who develops a strong desire for a natural food such as a freshly ripened raw tomato. She says to respond to that need and then continue the program. The exception applies to natural foods, not processed products.[2]
| What You Notice | What to Check in the Meal |
|---|---|
| You want more plant food. | Use the More-Plant entry guidance and choose cooked or fermented forms you already tolerate. |
| Raw food appeals in warm weather. | Keep raw-food digestive readiness separate from appetite and weather. |
| You want less dairy or animal fat. | Read the More-Plant chapter’s individual lower-fat-dairy or no-dairy branch. |
| You crave processed carbohydrate. | Keep the book’s distinction between natural-food desire and cravings shaped by processed food in view. |
The cleansing-and-building guide explains the food-role framework behind these choices. The preparation guide covers the cooked, fermented and raw forms.
Frequently Asked Questions
Does Climate Set My GAPS Food List?
No. The book uses climate to discuss changing proportions and appetite. GAPS food choices, preparation and the current approach still apply.
Were the Plant-Heavy Traditional Diets Vegan?
The patterns Campbell-McBride describes include local animal foods alongside plant foods. Her general vegetarian discussion and her definition of plant-only veganism are separate.[1][2]
Should I Use One Ratio All Year?
The book describes needs changing with season, activity, stress and other circumstances. It does not give everyone one year-round animal-to-plant ratio.[2]
Your Next Step
Use the More-Plant guide to review a meal you already make. The More-Plant GAPS Cookbook is listed in the WFLI Shop for practical meals within that approach.
For the broader traditional-food framework after GAPS, read Weston A. Price principles after GAPS. The separate Price and dental vitamins guide covers his tooth-decay work.
References
- Campbell-McBride, Natasha. Gut and Physiology Syndrome (2020), “Vegetarianism,” the author’s traditional-diet, climate, travel and weather argument.
- Campbell-McBride, Natasha. Gut and Physiology Syndrome (2020), “One Man’s Meat Is Another Man’s Poison,” Price’s historical examples, mixed ancestry, individual needs, changing circumstances and natural-food signals.
- Campbell-McBride, Natasha. Gut and Physiology Syndrome (2020), “The More-Plant GAPS Diet,” cooked plants, individual fat/dairy needs and raw-food readiness.


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