buckbuckbuck

Since I am at least a pot & a half a day drinker of coffee, and a 5 year vet, I have some experience.
When talking coffee, we all say coffee but we don't all mean the same thing. Coffee to me is regular coffee with cream. My uncle says coffee and it means black. My coworker says coffee and it is this whipped cream covered sundae in a huge cup with enough sugar to kill a diabetic.
The first thing to debunk is that coffee is diuretic. Caffeine is diuretic yes, but the amount of liquid present in a cup of coffee is more than enough to offset that. It will not dehydrate you.
When coffee is said to be acidic, that is actually in reference to the flavor; not the pH level. Our own saliva is more acidic than coffee and our stomach is far more acidic than that.
https://espressocoffeeguide.com/low-acid-coffee/
The only things to truly be cognizant of is that caffeine, regardless of its source, attaches to the same receptors that Vitamin D and Calcium bond to. So if you take supplements for those, don't take them with coffee. The other thing is that coffee can stimulate the bowels. Some people have always been like this, a good strong cup can send me to the bathroom relatively quick. That was before surgery and still happens today. Some people never had that issue before and now they do. It's not uncommon.

** Mandatory Disclaimer: This is my experience and I neither recommend nor advise against drinking to anyone who chooses to read this. The choice to drink or not to drink is yours, and yours alone, and any consequences or benefits you encounter are also yours and yours alone. **
So pre-wls I drank, and post-wls I still do. I was never (nor am I now) a drinker because I needed something to help me unwind or relax or take my mind off things. I drink because I'm having a dinner that calls for it, or I'm with friends/family and a good time is being had (or about to be had, lol). I guess I'm more of a binge drinker...?
Had my first drink (1/4 of a glass of red wine) at around 4-5 weeks. The past couple weeks aside (as I'm consciously laying off the alcohol for a couple more weeks as a PPI-wean-off experiment), and not counting alcohol-laden vacations, I probably have 1 day every couple of weeks where I'll drink maybe 5-6-7 drinks over the course of the evening. And maybe 1/2 a glass of wine with dinner one or 2 days a week.
My choice of liquor though is a lot lower sugar than it used to be. The dryest of red wines, vodka sodas, skinny mojitos, straight tequila. Once in a while I'll drink a sugar-laden something or other, but the sugar doesn't sit well with me, so I need to be mindful of that.
In terms of volume, I drank waaaaaay more pre-wls. This is likely because I get pretty drunk pretty fast now. I do however, sober up really quickly. Which I think is pretty awesome. For those who have previously experienced the need for assistance in walking out of establishments after a night out, you can vouch for this as an honest-to-goodness super-power.
With that said, so long as I feel like my drinking (or any habit, really) is not negatively impacting my physical or mental health, my relationships, work, financial state, or any other important aspect in my life, then its all good.
Each one of us should strive to know ourselves and acknowledge what we are capable and not capable of. It would be good to learn our limits so we can stay within them.
P.S. I recently admitted that I went beyond a personal-vice limit myself (smoking), and am addressing that issue now. Work in progress...
** Read Mandatory Disclaimer Above **

Okay so i have too push back alittle im sorry. My sister in law had throat cancer and shes always been hard core in the mormon religion so she has never even tryed alcohol yet she got it. What ever your experience with alchohol in life if its cause you been there done that or in the medical field or whatever doesnt mean alchohol is all bad maybe ur very religious or maybe like you said know information about it causeing ulcers in WLS patients. But everyone in the world you will see some get cancer others dont. My husband was told by his docter that he has a smokers lung and if he was smoking alot and he hasnt ever even tryed smoking and he doesnt drink nor knows anyone who smokes. It just depends on the persons background , genes, personality and life choices but alcohol isnt all bad. I bet i could take a question to say 7 docters and 5 out of those docters would say something is bad but the other 2 dont think its bad at all. Everything is taken in moderation and there experiences they go threw.
There are about a thousand of things i do everyweek that could leave me to some sort of sickness, disease or what not later in life if thats for puting to much i cant believe spray butter on my food or eating to many red foods or not washing my fruit completely to make sure i get rid of pesticides i choice to live my best life my way. That means do what makes me happy! My choices my life.
My father passed away from early on set alzheimers and died at 62 and was diagnosed at 52 with the disease so many people say if u drink this kinda water it will help so you dont get the disease and if u eat a certain food it will help with brain power but really it comes down to the unknown why he got this disease and just to many facters to figure it out. At least he had a good life and lived it his best. I can only hope at the end of the day i can be happy with myself and my choices. Thats all that matters.. i choice to drink alcohol occasionally and its delicious and i dont regret it one bit. Wish every one best of luck!

I had my first post-op drink about 2 months out with no issues. I'm now 14 months out and average 2-3 drinks every other weekend. Usually vodka-cranberry or other vodka based drinks. Doesn't seem to effect me any faster than before surgery. Only thing is that my stomach can't handle as much volume as before. Sometimes I'll have doubles to get around it. I am aware of the precautions mentioned above. Just wanted to throw in my experience.

Okay, it sounds like my one cup a day should not harm me.

I drink it with a little bit on milk and stevia so I’m not getting calories really.

I was more interested in the gastritis or ulcer issues.

I am going to ask at my next appointment to find out the rationale.

Thanks again for all the responses!!

I'm much further out than a year (4.5, to be exact), but I thought I'd answer this as well.

Could you eat a taco bell burrito Supreme? NO. AT LEAST NOT A WHOLE ONE.
Could you eat a hamburger with the bun? with one bun? with no bun? HAMBURGER BY ITSELF, YES - WITH BUN, NO
Could you eat 1 or 2 pieces of buttered toast? I'M SURE I COULD EAT TWO
could you eat an egg McMuffin? YES