DomDNA Lab
Health questions.
Clearer answers.
Make sense of the health claims you keep seeing. We explain what the evidence says, where it is uncertain, and what you can ask next.
Berberine and 'natural Ozempic': how to read the claims
Berberine is marketed for weight loss, but the evidence and safety questions differ from prescription medicines. Check the claim before buying.
Perimenopause brain fog and sleep: what to bring to your GP
Brain fog, broken sleep or changing periods? Use a short symptom record to prepare for a GP conversation without relying on a wellness score.
Vitamin D in autumn: a clear guide for UK adults
As autumn arrives, check the NHS vitamin D guidance, the limits of symptom guessing and the information to take to a pharmacist or GP.
AlphaGenome Atlas: what it means for your DNA report
AlphaGenome Atlas predicts molecular effects of DNA changes. Understand the research advance, its limits and why it cannot diagnose you from a consumer file.
Biological-age tests: what a younger score really means
Can a biological-age test prove you are ageing more slowly? Learn what methylation clocks estimate and why a September 2026 preprint adds caution.
Your sleep score is an estimate: how to use it well
A sleep tracker can help you notice routines, but its score needs context. Learn what to check, what to record and when to seek professional advice.
Magnesium glycinate for sleep: check the claim before the label
Does magnesium glycinate help sleep? Understand the limited evidence, supplement labels and safety questions before adding another bedtime product.
CGM without diabetes: what a glucose graph can tell you
Thinking about a continuous glucose monitor without diabetes? Understand the sensor, its limits and the questions to ask before paying for more data.
Creatine for brain fog: what the research can tell you
Creatine brain-health claims need context. See what a small sleep-deprivation trial found, what remains uncertain and how to read supplement claims.
GLP-1 weight loss: keeping muscle and nutrition in the picture
Eating less on a GLP-1 medicine? Learn why strength, food intake and support matter, and what to discuss with your prescriber or dietitian.
Fibremaxxing: how to eat more fibre without overdoing it
Curious about fibremaxxing? Start with the UK fibre target, everyday food swaps and a gradual approach that gives your gut time to adjust.
Earlier articles
From the archive. Check each article’s date and references; older material may not reflect current product capabilities or guidance.
23andMe bankruptcy
An archive guide to the 23andMe bankruptcy, what it raised about genetic-data ownership, and questions to ask about your information.
23andMe alternatives
An archive comparison of DNA testing services, with questions about privacy, data access and how to choose between providers.
Deleting genetic data
An archive guide to deleting genetic data, including account settings, sample storage and the limits of deletion requests.
Genetic privacy
Explore why genetic information is personal, what sharing it can mean for relatives, and the privacy questions worth asking.
DNA and supplements
An introduction to genetic differences and supplements, covering the questions behind personalised nutrition.
How genetics relates to medicines
Explore how genetic differences relate to the way medicines are processed, with topics to discuss with a prescriber.
The microbiome and DNA
An introduction to the relationship between gut microbes and genetics, and the questions researchers are exploring.
AI and genetic analysis
Explore how AI is used to analyse genetic information and the ideas behind turning large datasets into health insights.
Nutrigenomics
An introduction to nutrigenomics: the study of how genetic differences relate to food, nutrients and metabolism.
Genetics and healthy ageing
Explore the research themes linking genetics, ageing and everyday habits in this article from the archive.
Comparing DNA kits
An archive comparison of five DNA testing services, focusing on privacy, the information provided and how results are used.
Genetic-data sales
An archive look at commercial genetic-data partnerships and the questions they raise about consent and ownership.
The cost of genetic testing
Explore the business models behind low-cost genetic testing and the questions to ask about how your data may be used.