18 mins
Oct 22, 2025
How to Verify Supplement Quality: Interview with Futureproof Extra on Newstalk
On The Chris Wolfe Podcast, Prof. John Nolan answers frequently asked questions about carotenoids delving into how macular pigment optical density (MPOD) is measured, the accuracy of skin carotenoid assessments, and why a reliable understanding of these biomarkers is essential. He clarifies that skin carotenoid levels correlate with MPOD by about 30–40%, debunks common misconceptions, and highlights the importance of rigorous, validated measurements in both clinical practice and supplement development
