For The Past 2 Weeks, I've Noticed Small Chunks Of

For the past 2 weeks, I've noticed small chunks of red tissue-like material mixed in with my stool I thought it was protein supplements and almond milk (2 gallons per week) that I was having each week. I stopped both & the red pieces disappeared within 48 hours. Today, however, the tissue-like pieces appeared in my stool again. They are like tiny pieces of meat....almost like hot dog (which I haven't had). Any ideas?