Not Another Nutrition Podcast #9: NUTRITION - DNA & Food Intolerance Testing & Why Some Practitioners Choose to Use Them
Dec 20, 2020
Explore the validity of DNA food intolerance tests and why they may not be worth your time. Discover how genetics influences appetite but see the pitfalls of using DNA to dictate diets. Delve into the frustration of misinformation spreading on social media, especially from celebrity nutritionists. Learn about the benefits some experience when cutting specific food groups and the importance of evidence-based practices in achieving dietary success. A humorous yet critical look at the nutrition landscape awaits!
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Elite Weightlifter Labeled Endurance By DNA Test
- Adam Martin recounts a British weightlifter whose DNA test mistakenly labelled her as suited to endurance despite elite strength performance.
- The anecdote shows how simplistic DNA recommendations can contradict real-world phenotype and performance.
Phenotype Beats Genotype For Short Term Fuel Use
- Short-term metabolic state can flip between 'carb burner' and 'fat burner' regardless of DNA.
- Adam Martin notes you can make yourself predominantly utilise different fuels within weeks, showing phenotype overrides genotype for acute states.
Most Gene Predictions Are No Better Than Coin Tosses
- Many advertised gene–trait links (carb vs fat burner) have negligible predictive power for individuals.
- Adam Martin compares some test outcomes to a coin toss to highlight their unreliability.