Negatives to adding peanut butter, banana and oats to a Whey shake

[Builder3]

Are there any negative effects to adding peanut butter, banana and oats to a post-workout whey shake?

I have read here that peanut butter can slow digestion down, how significant is this?

[OT2000]

It is of no significance

[smokinal]

The only negative effects would be if you are on a cut...lol

[bLinkMoore]

It's a hell of a lot of calories to down at once, but assuming that you're keeping rough track of your calorie intake you'll be fine. Other than that, no negatives