Figure 4

![Figure 4: Lactase persistence and non-persistence genetic variants mapped across global populations, illustrating the geographic distribution of lactose tolerance phenotypes.]()

> Source: Millie Porzi et al. "Development of Personalized Nutrition: Applications in Lactose Intolerance Diagn." *Nutrients*, 2021. PMID: [33946892](https://pubmed.ncbi.nlm.nih.gov/33946892/)

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  <img src="" alt="Lactase persistence and non-persistence genetic variants mapped across global populations, illustrating the geographic distribution of lactose tolerance phenotypes." />
  <figcaption>Figure 4. Lactase persistence and non-persistence genetic variants mapped across global populations, illustrating the geographic distribution of lactose tolerance phenotypes.<br>  Source: Millie Porzi et al. "Development of Personalized Nutrition: Applications in Lactose Intolerance Diagn." <em>Nutrients</em>, 2021. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/33946892/">33946892</a></figcaption>
</figure>