FuelYourDNA Blog

Discover the latest advances in nutrigenomics and learn how to optimize your diet based on your DNA.

Your DRD2 Gene and Reward-Driven Eating: Why Ultra-Processed Foods Hit Harder for Some

The DRD2 TaqIA variant (rs1800497) is linked to fewer dopamine D2 receptors, a blunted reward signal and a stronger pull toward ultra-processed foods. Here is what the science says and what to do about it.

Jun 20, 2026 5 min read

Why Carrots Are Not Enough Vitamin A for Everyone: The BCMO1 Gene

Nearly half the population carries BCMO1 variants that reduce beta-carotene to vitamin A conversion by up to 69 percent. Here is what that means for your diet, especially if you rely on plant foods.

Jun 20, 2026 5 min read

Your COMT Gene: Are You a Warrior or a Worrier, and What Should You Eat?

The COMT gene determines how quickly your brain clears dopamine after stress. Whether you are a warrior (Val/Val) or a worrier (Met/Met) shapes how you handle pressure and what you should eat.

Jun 20, 2026 5 min read

Are You Salt-Sensitive? Your ACE and ADD1 Genes May Decide

Cutting salt helps some people's blood pressure and barely moves others. That difference, salt sensitivity, is partly genetic, shaped by genes like ACE and ADD1.

Jun 16, 2026 5 min read

When You Eat May Matter as Much as What: Your Circadian Genes and Meal Timing

Chrononutrition shows when you eat matters, and your circadian genes like PER3 help decide how your body handles a meal at different times. Here is the science.

Jun 16, 2026 5 min read

Red Meat, Your NAT2 Detox Gene and Gut Health: What the Latest Research Means for You

Is red meat good or bad? It depends on your genes. A look at the NAT2 detox gene, the COL1A1 finding and how your DNA shapes the way you handle red meat.

Jun 16, 2026 5 min read

Diet and How Fast You Age: What a 2026 UK Biobank Study Found About Food, Telomeres and Your Brain

A 2026 UK Biobank study links diet to telomeres, biological age and brain volume. Here is what it means, and how your genes shape how food affects your ageing.

Jun 16, 2026 5 min read

The Other Iron Problem: Which Genes Make You Prone to Deficiency, Not Overload

Iron is not only about overload. A 2026 review shows genes like TMPRSS6 tip some people toward iron deficiency. Learn the science and how your DNA shapes your iron.

Jun 16, 2026 5 min read

Your FTO and TCF7L2 Genes Change How Every Meal Rewrites Your Epigenetics

New 2026 research shows your FTO and TCF7L2 genes change how each meal reshapes your epigenetics, your hunger and your blood sugar. Here is the science and what to do.

Jun 16, 2026 5 min read

Fructose vs Glucose: Why One Sugar Leaves You Hungrier (and How Your Genes Tip the Balance)

New research shows fructose sends a weaker fullness signal to the brain than glucose. Here is the science, and how your DNA shapes appetite and sugar handling.

Jun 14, 2026 6 min read

Beyond MTHFR: The Upstream Genetic Drivers That Shape Your Health

MTHFR is the most famous gene in wellness, but it's rarely the main driver of symptoms. Here are the upstream genes that often matter more, and a smarter way to support them.

Jun 8, 2026 8 min read

The HFE Gene and Hereditary Haemochromatosis: When Your Body Stores Too Much Iron

How HFE gene variants cause iron overload, the most common genetic disorder in people of European descent, and the dietary strategies that help.

Jun 4, 2026 9 min read

When a Vitamin Fixes a Gene: What 2026 Nutritional Genomics Teaches Us

A study published in Cell in 2026 shows that vitamins such as B2 and B3 can compensate for certain genetic defects, a striking validation of the principle behind nutrigenomics.

Jun 2, 2026 5 min read

Carbohydrates and Aging: What a Major 2026 Study Just Revealed

A UK Biobank analysis published in 2026 suggests carbohydrate quality influences biological age and brain grey matter volume, putting the bad reputation of starches into perspective.

Jun 2, 2026 4 min read

The AMY1 Gene: Why You Don't Digest Starch Like Everyone Else

The number of copies of the salivary amylase gene (AMY1) ranges from 2 to 15+ between people and shapes your response to carbohydrates, a striking example of gene-diet adaptation.

Jun 2, 2026 5 min read

APOE ε2: A Rare Gene Variant That May Protect Against Alzheimer's

A rare variation of the APOE gene helps some brains resist Alzheimer's-related changes, but protective genetics is not the same as guaranteed protection.

May 3, 2026 5 min read

8,000-Year-Old Kefir: How Our Ancestors Solved Lactose Intolerance Before Their Genes Did

DNA analysis of prehistoric residues reveals ancient populations made kefir-style cheese to overcome lactose intolerance 8,000 years ago, millennia before the LCT gene mutation spread through Europe.

May 2, 2026 5 min read

The Gene That Makes Some People Completely Alcohol Intolerant, and You Might Carry It

A landmark study from Seoul National University confirmed that the ALDH2*2 variant disrupts alcohol metabolism in 540 million people worldwide. This gene, analysed in your FuelYourDNA profile, has concrete nutritional implications.

Apr 27, 2026 4 min read

Your Lifestyle Literally Rewrites Your DNA, Without Changing a Single Gene

Researchers at Peking University demonstrated that diet, stress, and exercise physically modify the chemical markers on your DNA. Your genome is the hardware; your epigenome is the software, and your daily choices are constantly updating it.

Apr 27, 2026 4 min read

Weight Management

Why You Can't Lose Weight Despite Every Effort: Your DNA Knew the Answer All Along

Obesity genetics, FTO gene, APOA2, VDR, MTHFR… Discover why your DNA explains your struggle to lose weight and how nutrigenomics changes everything.

Apr 23, 2026 8 min read

Vitamin B12 Absorption: How Your FUT2 and TCN2 Genes Determine Your Status

Understand how FUT2 and TCN2 gene variants affect vitamin B12 absorption and transport, with practical optimization strategies.

Jan 2, 2026 7 min read

Introduction to Nutrigenomics: The Science of Personalized Nutrition Through DNA

Explore the fascinating field of nutrigenomics and learn how your genes interact with food to influence your health outcomes.

Jan 1, 2026 12 min read

FADS Genes and Omega-3 Conversion: Optimizing Your Essential Fatty Acid Status

Discover how FADS gene variants affect your ability to convert plant omega-3s to EPA and DHA, and learn optimal strategies.

Dec 29, 2025 8 min read

ALDH2 Gene: The Genetic Science Behind Alcohol Metabolism and Sensitivity

Learn how the ALDH2 gene affects alcohol processing and why some people experience the "Asian flush" reaction.

Dec 26, 2025 6 min read

APOE Gene: Cholesterol, Cardiovascular Risk and Brain Health Explained

Explore how APOE gene variants influence cholesterol metabolism, heart health, and cognitive function with personalized dietary strategies.

Dec 24, 2025 10 min read

LCT Gene and Lactose Intolerance: Understanding Your Dairy Tolerance Genetically

Learn how your LCT gene determines lactose tolerance and discover strategies for optimal dairy consumption based on your genetics.

Dec 19, 2025 7 min read

CYP1A2 and Caffeine: Are You a Fast or Slow Coffee Metabolizer?

Find out if you are a fast or slow caffeine metabolizer and how this genetic trait affects your coffee habits and health.

Dec 14, 2025 7 min read

VDR Gene and Vitamin D: Personalizing Your Sunshine Vitamin Intake

Discover how your VDR gene variations influence vitamin D absorption and learn optimal strategies for maintaining healthy levels.

Dec 9, 2025 7 min read

Understanding the MTHFR Gene: Your Complete Guide to Methylation and Nutrition

Learn how variations in your MTHFR gene affect folate metabolism and discover personalized nutrition strategies for optimal health.

Dec 4, 2025 8 min read