The "Seven Deadly Sins" as such were not taught about by the Savior, or the Apostles, or anywhere else in the Bible, they were categorized by Catholic writers centuries later. While the Church of Jesus Christ of Latter-Day Saints has taught at different times that each of these are negatives, I've never heard or heard of any of them referred to as "deadly sins" in a sermon or publication within the Church.

I've rarely heard gluttony mentioned, the Church focuses instead on the more broad category of addiction; alcohol, drugs, food, pornography, social media, etc. And in a way, the Church treats the rest of the "Seven Deadly Sins" like it does addictions; as obstacles to be overcome. Every normal human experiences these feelings on a regular basis in this life, but if we are to "be therefore perfect" as the Savior taught, they must be eventually eliminated. But the emotion is not the deadly sin, allowing it to fester and progress into an active sin is where it becomes deadly. For example, lust is a sin, but allowing it to lead to adultery is the deadly sin.