The Claim
The global distribution of lactase persistence is poorly characterized in eastern and northern Asia, Indonesia, Melanesia, Australia, and Polynesia due to sparse phenotypic and genotypic data, which limits understanding of the trait's evolutionary history in these regions.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
There is insufficient genetic and physical trait data from populations in eastern and northern Asia, Indonesia, Melanesia, Australia, and Polynesia to accurately map how lactase persistence evolved in these regions.
See the scientific wording
The global distribution of lactase persistence is poorly characterized in eastern and northern Asia, Indonesia, Melanesia, Australia, and Polynesia due to sparse phenotypic and genotypic data, limiting understanding of the trait’s evolutionary history in these regions.
In some populations, adults can digest milk because their bodies continue making an enzyme that breaks down lactose, but scientists do not have enough information about who has this trait in parts of Asia, Australia, and the Pacific, so they cannot map how this trait spread over time.
What the research says
1 studyStudy: A worldwide correlation of lactase persistence phenotype and genotypes
Scientists don’t have enough data to understand why some people in parts of Asia, Australia, and the Pacific can digest milk as adults—this study says we’re missing key genetic information in those areas, so we just don’t know enough yet.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.