Translation of ayuno

I really worry about the health of obese people, especially the ones that I know in person (friends, relatives), because it is well known that overweight have a higher probability of heart attack.
I walked down the main street of the town and soon found out that there was a nice place not far from the main square. It cost around two hundred pesos which was equivalent to twenty US Dollars.
The American (his name was Jeffrey) meant that this is the hour where usually the price of goods went down as the sellers were under pressure and did not want to return with the product.