Ancient Gene Duplication Enhanced Human Starch Digestion

Research reveals that the ability to digest starch predates Homo sapiens, offering an evolutionary advantage.

A new study published in 'Science' suggests that humans have been able to digest starchy foods for approximately 800,000 years.
The duplication of the AMY1 gene, which codes for the enzyme amylase, allowed early humans to efficiently process carbohydrates.
Research shows that Neandertals and Denisovans also had multiple copies of the AMY1 gene, indicating its ancient origins.
Increased AMY1 gene copies are linked to higher starch consumption, which likely contributed to greater reproductive success.
The study highlights the role of genetic variation in human evolution and its potential implications for understanding metabolism and health.