Human Salivary Amylase Gene Copy Number Impacts Oral and Gut Microbiomes

？ High AMY1 copy number (CN) is associated with higher levels of Porphyromonas in saliva ？ High AMY1-CN stool has more resistant starch degraders; drives more adiposity in GF mice ？ Stool short-chain fatty acid levels are predictive of salivary amylase activity ？ Upon diet standardization, gut microbiomes converged without eliminating difference