1 Corinthians 6:19-20
“What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own? For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God’s.”
If the Holy Spirit dwells within you, then your body certainly is a Temple and should be treated as such. This is why our Father has food laws, to protect the body from pollutants and to keep it clean.
After the Tribulation of Satan, we begin the point in time known as the Millennium. During that time our bodies (incorruptible at that time 1 Corinthians 15:33-55) once again will make up that Temple, we will become the Pillars of it. You can learn more about that in this past Bible Q&A.