Discover Your Ancestral Diet
Select your grandparents' origins in the sidebar to calculate your personalized ancestral diet recommendations.
Discover what your genetics say about how you process food. Enter your grandparents' origins and get personalized dietary insights grounded in peer-reviewed research on 34+ genetic traits.
Three steps to your personalized ancestral diet profile
Select your four grandparents' origins, or enter percentages from a DNA test like 23andMe or AncestryDNA.
We calculate your likely genetic traits using Mendelian inheritance and Hardy-Weinberg equilibrium from population-level data.
Get a personalized ancestral diet with foods, macros, and recommendations tailored to your predicted genetic profile.
A comprehensive look at your genetic relationship with food
Lactose tolerance, caffeine metabolism, starch digestion, vitamin absorption, and 30+ more traits with probability scores.
Traditional foods from your lineage, with each item linked to specific genetic traits that affect how your body processes it.
See how your genetics shift your nutritional needs away from standard recommendations, with specific adjustments explained.
Meal-by-meal guidance on what to prioritize and limit, personalized by your genetic strengths and sensitivities.
Every genetic trait is backed by peer-reviewed studies. Full citations included so you can verify the science yourself.
Everything runs locally in your browser. No data is sent to any server. No accounts, no tracking, no third parties.
No. DNA tests like 23andMe analyze your actual genetic material. We use population-level statistics to estimate what traits you might have based on where your grandparents came from. Think of it as "genetic probability" rather than "genetic certainty."
Results reflect population averages and Mendelian inheritance probabilities. If we say "75% likely lactose tolerant," it means 3 out of 4 people with your ancestral mix would have this trait. Your individual genetics may differ.
This tool is for exploration and education, not medical advice. If you're considering dietary changes, especially for health conditions, consult a registered dietitian or healthcare provider who can consider your complete health picture.
All calculations happen in your browser. Your ancestry selections are saved locally on your device (localStorage) so you don't have to re-enter them. We don't collect, store, or share any personal information.
You can explore different ancestries to learn about various dietary traditions and genetic adaptations. The "DNA Test" mode also lets you enter percentages if you have results from an ancestry service.
Your four grandparents represent four distinct genetic lineages. This lets us model Mendelian inheritance patterns more accurately than a single ethnicity label, capturing the genetic diversity that actually shapes your traits.