Pepto Tabs and Tums are pretty helpful with harsh orals and a trash diet.
Also, try to eat as little trash as possible. Don’t eat fast food, sugar or trash oils if you don’t find the need to just because you can. Save them for when appetite is just awful. Milk or real juice is preferable to soda & fructose obviously.
There’s a lot of cleaner foods to help stack up the calories. I know Luke Sandoe is big on blending a ton of plane rice krispy cereal in his post WO shakes. Granola in all of your Greek yogurt, I know you are already doing nuts and trail mix/dried fruit. Olive oil on anything, cooking in avocado oil and smearing guacamole on things like homemade burgers can be nice way to add healthier fats for your poor arteries.
White processed breads like sourdough bread, tortillas, potato buns and added shredded cheese with ground or pulled meats is a great way to get macros & calories in. Lots of homemade burritos and burgers.
It’s kind of a sliding scale from clean to trash based on what you can repeatedly do.