# Whey concentrate intolerance.... how long? **URL:** \ **Category:** Nutrition Q&A \[Moderated\]\ **Created:** [May 10, 2018, 5:32pm UTC](https://forum.barbellmedicine.com/t/whey-concentrate-intolerance-how-long/1945 "2018-05-10T17:32:46Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Old\_and\_fat](https://avatars.discourse-cdn.com/v4/letter/o/977dab/32.png) [@Old\_and\_fat](https://forum.barbellmedicine.com/u/Old_and_fat)\ **Post date:** [May 10, 2018, 5:32pm UTC](https://forum.barbellmedicine.com/t/whey-concentrate-intolerance-how-long/1945/1 "2018-05-10T17:32:46Z")
I feel silly asking because I think I know the answer, but if I don’t ask, I won’t know. Based on your recommendation I’m starting off with a cheaper whey concentrate. Twice a day, and all is good. But im wondering if I’m to experience any issues and should switch to isolate, will I discover this: a) pretty damn quick as in same day b) over a period of days I’m pretty sure I’m gonna know right away if I can’t tolerate concentrate but i just want To make sure I’m not over looking any residual/cumulative effect. P.s vanilla whey + diet crush orange = creamsicle ice cream flavor = I love my life! ---
**Author:** ![Jordan\_Feigenbaum](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.barbellmedicine.com/jordan_feigenbaum/32/1315_2.png) [@Jordan\_Feigenbaum](https://forum.barbellmedicine.com/u/Jordan_Feigenbaum)\ **Post date:** [May 12, 2018, 7:55pm UTC](https://forum.barbellmedicine.com/t/whey-concentrate-intolerance-how-long/1945/2 "2018-05-12T19:55:42Z")
Hey there! I would expect you to know rather immediately so I think you’re in the clear. However, our vanilla whey is whey protein isolate just FYI. ---
**Author:** ![c1sarena](https://avatars.discourse-cdn.com/v4/letter/c/9e8a1a/32.png) [@c1sarena](https://forum.barbellmedicine.com/u/c1sarena)\ **Post date:** [May 16, 2018, 2:33am UTC](https://forum.barbellmedicine.com/t/whey-concentrate-intolerance-how-long/1945/3 "2018-05-16T02:33:23Z")
And it’s absolutely amazing!