You are given a sentence in Spanish. Your job is to translate the Spanish sentence into English.
Q: De hecho, lamento informarles, que dentro del tracto digestivo tenemos cerca de 5 kilos de microbios que circulan considerablemente por del cuerpo.
A:
In fact I'm sorry to inform you that inside of your digestive tract is about 10 pounds of microbes which you're circulating through your body quite a bit.