I have started taking recovery protein 5 days ago. I have noticed in the past 2 days my sperms has some brown streaks in it. I m wondering if this could be from the chocolate protein I m taken. This is the only foreign thing I have interduced in my body for the past 3 weeks...
Thanks for asking in Chat Doctor forum Grayish/black thread like material can be found in semen mainly from prostatic secretion normally.  So, you need not worry about this. If you have any pain during urination/ bleeding/ altered semen then please visit a doctor for investigation and further management. Your chocolate protein supplement may not be related to this.  All the best.