I love Coke Zero. About the only increased price food item I have had a hard time finding a reasonably priced and equivalent substitute for. I have a relative with a basement stocked with Cherry Coke Zero she hoarded like toilet paper before the prices got jacked.
On the gluten thing, husband’s most obnoxious sister has celiac disease. She used to always nag her sister, who has always been a bit chunky, about why she couldn’t lose weight. When celiac sister was diagnosed and quit eating gluten, she became fat for the first time in her life. She also got more obnoxious. Now if you have a big meal and there is even one single item with gluten, she has an absolute fit. You can’t just get one pie crust on Thanksgiving that is gluten free, every pie has to be, every kind of roll, or she will harp that you are trying to kill her.