Its been 10days past my surgery can i consume coffee.

You need to check with your medical team. Most of us receive very different professional advice on diet progression. For me, I think I stuck to decaf for the first couple of months since I'd already weaned off caffeine. After that, I opted to allow a single caffeinated drink per day. I had been a "drink coke zero like it's Water girl before" and it took me 6 months to break that addiction. One of the reasons caffeine is bad is that it leeches the Calcium from your system. As we've had major gastric surgery, we have a decreased capacity to absorb minerals to begin with and need to retain all we can.

I had my first cup of coffee 8 weeks post op today. I emailed the dietician to see how "bad"it really is. We will see.

I have coffee often. Once I was on general diet, coffee was not restricted. I usually take a scoop of unflavored or vanilla Protein powder and kill a couple birds with one stone - necessary nectar of the gods and 30 grams of protein in one fell swoop. LOL.

I have 2-3 cups if coffee each day. NUT gave me the go ahead about 2 months out. Haven't had any problem with it.

I did switch from half and half to powdered milk (not coffee mate!) to boost Protein a bit

My doc let me drink coffee right off the bat. One thing to think about, for every cup of coffee you need to match it with water because it’s a diuretic.(spelling) That being said coffee is the best appetite suppressant I have found. Before surgery I could not sleep if I drank coffee. Now I can abuse it and still sleep. It’s my one and only vise. I also dont have acid problems. That could be a problem for some.

I was given coffee with my breakfast the day I was discharged. I drink it black. I have had no issues.

Is everyone drinking regular or decaf?

I drink about two mugs of regular, then switch to decaf if I want more. So, both I guess

Coffee isn't any more of a diuretic than water is and will not dehydrate you. There may be other reasons to avoid coffee and/or caffeine but that isn't one of them.

http://life.nationalpost.com/2014/01/21/nutrition-fact-or-fallacy-does-coffee-dehydrate-you/

http://www.npr.org/blogs/thesalt/2014/01/13/262175623/coffee-myth-busting-cup-of-joe-may-help-hydration-and-memory

http://www.webmd.com/balance/caffeine-myths-and-facts?page=2

and coffee has been cited for having positive health benefits as well:

http://www.mayoclinic.org/healthy-living/nutrition-and-healthy-eating/expert-answers/coffee-and-health/faq-20058339