Precision nutrition
In plain language
Everyone responds differently to food. What gives one person energy gives another a dip. Precision nutrition takes that into account: based on your biology — and, where available, a multi-omics analysis of DNA, microbiome and metabolome — you receive advice that suits yóu.
It is the opposite of ‘one scoop for everyone’. Instead of a general guideline, precision nutrition shows which foods you are best to embrace, limit or avoid, and which targeted support suits your goal, your daily rhythm and your season. You do not necessarily need a test for that — even without an analysis you can make more targeted choices — but a biological picture refines the advice. Important: it is a supportive, educational approach, not a strict diet and not a medical treatment.
The science behind
Precision nutrition builds on the insight that the individual response to food varies greatly. Research into personalised glycaemic responses (among others Zeevi and Segal) showed that people respond very differently to the same meal, partly because of their microbiome composition. Genetic predisposition, metabolism and lifestyle also colour that response. As a result, a universal guideline often does not suffice: the same recommendation can work for one person and backfire for another.
To capture that variation, precision approaches use multi-omics: reading the genome, microbiome and metabolome together. Those layers are translated into practical advice, often in an embrace–limit–avoid logic per nutrition domain. The goal is not more rules, but more relevant ones: recommendations that match how your system actually responds. Such advice is emphatically supportive and educational, not a diagnosis or treatment.
The common thread is co-metabolism: how you respond to food arises from the interplay of DNA, microbiome, metabolites and lifestyle together — never from one layer in isolation. In practice, true personalisation scales best through smart combinations of existing, modular building blocks, tuned to rhythm and season: you personalise above all in the selection. This is how precision nutrition becomes living, adjustable advice that moves with your biology rather than a fixed list of prescriptions. This reading is supportive and observational — not a medical diagnosis.
Illustration & CosmoTalks
From science to daily practice — five episodes on measuring, interpreting and adjusting.
- S12·E1 — From separate measurements to a readable whole
- S12·E2 — Why context changes everything
- S12·E3 — Signals that warn in advance
- S12·E4 — Timing as a hidden lever
- S12·E5 — Understanding in order to decide better
Related concepts
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My InnerSelfie
Map your individual response with a multi-omics analysis — the basis for nutrition that suits yóu.
Discover My InnerSelfie →My Key Nutrients
The supplementation layer of precision nutrition: your combination, tuned to your rhythm and season, and adjustable over time.
See the range →CosmoPulse
For performance environments: readiness, adaptation and recovery bundled into one readable decision signal.
Discover CosmoPulse →The books · HOST · FORMULA · EDGE
The common thread of this science, from insight to daily application, by Petra Van Gucht.
See the books →Scientific references
• Berry SE., et al. (2020) — Human postprandial responses to food and potential for precision nutrition. Nat Med.
• Spector T. (2020) — Spoon-Fed. Jonathan Cape.
• Van Gucht P. — FORMULA (COSMO trilogy): from observation to application.
Frequently asked questions
- What is precision nutrition?
- Nutrition and supplementation advice tailored to your individual biology instead of to general guidelines.
- Why does everyone respond differently to food?
- Because of differences in genetics, microbiome, metabolism and lifestyle — together your co-metabolism.
- Do I need a test?
- An analysis refines the advice, but even without a test you can make more targeted choices.
- Is precision nutrition a diet?
- No — it is a personalised, supportive approach, not a strict diet or medical treatment.
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