Amylase is the enzyme used in the first step of breaking down carbohydrates for fuel. Not everyone produces the same amount of amylase. Some people are champs at breaking down carbs. Other people may need to take it a little bit easier on the amount of carbs they eat at one time.
If you have 23andMe version 4 (prior to Aug. 2017) data, you can check to see if you are likely to have high or low amylase activity.
Want more details? Check out the full article on digesting carbs.
*SNP stands for Single Nucleotide Polymorphism, which is when one of the nucleotide bases (the A, C, G, or Ts) is replaced by a different nucleotide base in a gene.
Want to know more about your genes? Read through all the Snips about SNPs.