Yellow poop?

Apologizes in advance for the TMI...

I'm 13 days into my pre-surgery diet (having surgery in 2 weeks). The first 4 days I was on Optifast, then switched to a real food plan, given to me by the dietician, because I seemed to have an allergic reaction to the whey in the Opti (bad sinus congestion with thick, almost swollen tongue).

For the past 9 days, per day I'm consuming about 750-900 calories, 40-50g carbs, 20-30g fat, and about 100g protein. I drink 8-10 cups water/day, usually with some Mio flavouring. Food consists mainly of Greek yogurt, chicken breast, cucumber, red peppers, Ryveta crackers, olive oil mayo, mustard, Torani SF syrup. I've had SF jello and natural peanut butter once or twice.

No stomach trouble to speak of. I've been pretty regular. There was a couple of days of more watery BM at the beginning, but nothing extreme. I'm not having any stomach pain.

I'm taking all my regular vitamins and supplements, including my regular probiotic.

My only problem is that my poop is yellow. It's been like this for least 10 days. Is this a normal reaction to the change in diet? Anyone else experience this?

Google tells me it could mean too much fat in my diet, but I'm eating low fat. Some places mention gut flora but I'm eating lots of yogurt and take probiotics. I'm wondering if it could be the artificial sweeteners in the Mio and Torani syrup?

It could mean a bum gallbladder, but I think you would have more gastric symptoms. Hard to tell really, but prolonged pale poop is usually related to gallbladder or liver (biliary system). Could also be drastic change in diet. Best to call your surgeon to get checked out.

that's not uncommon for a few weeks after surgery, but I haven't heard about it happening before surgery. Yea - you might want to check with your doctor.

Thank you both. It seems to be improving a little, but I'm planning to ask a nurse at my bariatric centre week.