Nutrigenomics is the study of how your genes influence the way your body processes food. Every person carries small genetic variations that affect how efficiently they metabolize fat, absorb vitamins, and respond to carbohydrates or caffeine. A nutrigenomics assessment reads those variations and translates them into a nutrition plan built around your actual biology, not general population averages.

This is different from counting calories or following a diet trend. It's built on your biology, not guesswork. Peer-reviewed research on gene-diet interactions, available through the National Institutes of Health’s PubMed Central database, supports this approach.

The honest answer is genetics. One person’s genes might metabolize carbohydrates quickly, so a higher-carb diet keeps their energy steady. Another person’s genes might process fat more efficiently, so the same plan leaves them sluggish or triggers weight gain.

These differences show up in real ways. Two people can take an identical vitamin D supplement and end up with completely different blood levels, simply because their genes control how well that vitamin gets absorbed and converted into a usable form. Without genetic insight, you’re left guessing why a plan that worked for someone else isn’t working for you.

A genetic nutrition testing panel can show whether your body absorbs key nutrients like folate, B12, and omega-3 fatty acids efficiently, or whether you’re prone to deficiencies no matter how well you eat. It can also point to how you process caffeine and alcohol, how sensitive you are to saturated fat, and whether a lower-carb or higher-protein approach fits your biology better.

Genetic testing can also help identify whether you’re genetically predisposed to poor absorption of a specific nutrient, which means a supplement you’re already taking might not be doing much for you at all.

A nutrition app or generic meal plan is built for an average person who doesn't exist. Nutrigenomics is built for you. Dr. Roza Kazemi, PharmD, reviews your genetic results directly, rather than running them through an automated report, and translates them into specific, actionable changes to your diet and supplement routine.

Nutrigenomics also sits inside a bigger picture. Genes don't just influence what you eat; they can be turned up or down by lifestyle factors, a field known as epigenetics and gene expression. Understanding both gives a fuller view of how your daily habits interact with your DNA.

What is nutrigenomics, and how does it work?
Nutrigenomics studies how your genes affect the way your body processes food, vitamins, and other nutrients. A genetic test identifies specific variants, and a pharmacist translates those results into practical dietary and supplement guidance.
Is nutrigenomics available in Orange County?
Yes. Newport Precision Rx offers nutrigenomics testing in Orange County and pharmacist-led interpretation at our Corona Del Mar location, with both in-office and at-home sample collection options.
Is nutrigenomics the same as testing how I respond to medications?
No. This service focuses on how your genes affect what you eat and absorb, not how you process medications. That is handled through a separate assessment.
What does my DNA say about my diet?
Your DNA can reveal how you metabolize carbohydrates and fat, how sensitive you are to caffeine or alcohol, and how efficiently you absorb key vitamins and minerals.
Can genetic testing tell me what supplements I need?
It can help identify whether you’re genetically prone to poor absorption of specific nutrients, which is often the reason a supplement isn’t producing noticeable results.

Nutrigenomics in Orange County

Eating for Your Genes