Hunter-farmer phenotyping is a cPNI framework distinguishing two metabolic-psychological phenotypes shaped by transgenerational adaptation and epigenetic programming: hunters (lean, stress-reactive, insulin-sensitive) vs farmers (higher body fat, stress-resilient, prone to metabolic syndrome with modern mismatch).
Phenotype emerges from transgenerational epigenetic programming influenced by ancestral environment, maternal nutrition during pregnancy, early life stress exposure, and microbiome establishment. Hunters evolved for intermittent feast-famine, requiring high metabolic flexibility and stress responsiveness. Farmers evolved for agricultural abundance, developing thrifty genes favoring energy storage. Phenotype determines insulin sensitivity, adipose distribution, HPA axis reactivity, immune baseline, and optimal dietary patterns.
Hunter-farmer phenotyping guides personalized cPNI interventions for nutrition, exercise, stress management, and inflammatory conditions. Hunters need frequent movement, variable diet, stress discharge; farmers benefit from muscle-building resistance training, fewer meals (1-2/day), anti-estrogenic strategies. Mismatched interventions worsen metabolic dysfunction.
- Hunters: lean build, low body fat, high stress reactivity, insulin-sensitive baseline
- Farmers: higher body fat set point, stress-resilient until breakdown, prone to insulin resistance
- Hunters benefit from intermittent fasting and high dietary variation
- Farmers require 1-2 meals/day (not 3+), resistance training to increase muscle mass
- Phenotype influenced by: war, famine, colonization, maternal stress (transgenerational AMP)
- Farmers have better baseline metabolic markers but higher cancer risk (estrogen dominance)
- Hunters develop thinness phenotype with stress; farmers develop adipose hypertrophy
- Protein intake ~20% optimal for both phenotypes but different meal frequencies
- Transgenerational AMP — ancestral experiences program hunter vs farmer phenotype
- Metabolic syndrome — farmers particularly vulnerable with modern diet/lifestyle mismatch
- Insulin resistance — farmers develop insulin resistance more readily with excess calories
- Adipose tissue — farmers store more adipose tissue as evolutionary adaptation
- Estrogen dominance — adipose tissue in farmers increases aromatase and estrogen
- HPA axis — hunters have more reactive HPA axis; farmers more resilient initially
- Epigenetics — phenotype transmitted through epigenetic mechanisms
- Maternal stress — programs offspring toward hunter phenotype
- Intermittent fasting — hunters particularly benefit from feast-famine patterns
- Resistance training — critical for farmers to increase muscle mass and insulin sensitivity
- Muscle mass — farmers need muscle to improve metabolic health
- Thrifty genotype — farmers express thrifty genes favoring energy storage
- Metabolic flexibility — hunters maintain higher baseline metabolic flexibility
- Stress response — hunters discharge stress through movement; farmers internalize
- Cancer — farmers have higher cancer risk through estrogen pathways
- Dietary variation — hunters require high variation; farmers more tolerant of monotony
- Text-Context Model — phenotype represents the 'text' (genetic/epigenetic programming)
- Evolutionary mismatch — modern environment mismatched to both phenotypes but differently
- Body fat — set point differs between phenotypes
- ACEs — shape phenotype expression through early programming