Too much protein?

I'm 5 months out of RNY and getting 70-85g a day. Is there a limit for protein intake? Like if I got 100g in one day would that be bad?

No, 100 grams of protein in a day would not be bad, it is a good thing. The 70-85g a day should be a minimum, not a maximum. If you were getting huge amounts and had an existing kidney disorder, it could be an issue. But that's pretty rare.

I average close to 200g a day, and once in a while hit 300g.

What are you doing to get so much protein?  Need some ideas!

I make shakes, blending 1 cup of almond milk with a scopp of syntrax nectar (any flavor), a little SF pudding mix, and ice. I also use unflavored protein (isopure) in my iced coffee in the morning (my pouch doesn't like hot beverages).

It's not bad at all.  However, protein is not stored by the body so any protein you consume beyond your needs is just calories that you could consume in the form of other foods, like fruits and vegetables.  I'm personally of the opinion that those extra fruits and vegetables would better support your overall health rather than some extra chicken or another shake but to each their own.

When I was in my losing phase I generally got 200 grams a day. I believe it helped me have less hunger.

As Grim said, if you have kidney issues, it can make them worse. HERE is an article on the subject.

Laura and Grim...

Just curious...what did you eat to get in so much protein?

I also stayed at about 200 grams a day while losing. 

When I first started her on Obesity Help the recommendations for protein was 65-85 gms a day for most patients. Those that figured more protein more weight loss and those docs that recommended more protein that the usual 65 gms had patients with problems with kidney stones and

the recommendations for protein at that time were then dropped down. If the stones were caused by too much protein then the patient was instructed to take in less per day. I was on 64 gms per day for the first 2 yrs. After that the villa grow back and we can absorb more through food and the recommended amounts were dropped a bit. I was never on protein shakes but for those that are they are allowed more protein and usually calories per day. We absorb between 25-30 gms of protein per meal so for most of us 3 meals of protein only or protein forward meals is fine.

jen 13 yrs post op RNY

Kidney stones are much more likely to be caused by issues other than high protein.

The biggest cause, by far, is lack of fluid intake. Which, not coincidentally, is the biggest issue and most common problem for postops.

Oxalates are the second most common cause of kidney stones. Oxalate levels are increased in any patient with intestinal bypass, not just those with WLS. Oxalates also come from some vegetables, fruits, and almost all nuts.

Lack of calcium is also a cause of kidney stones, and many postops either do not take sufficient calcium, or take calcium carbonate, which amounts to the same thing. Calcium carbonate will also give you gallstones postop.

There are other ways of getting kidney stones with no relation to protein intake. As a source of complications post-surgery, inadequate protein intake is FAR more likely than too much.