Yes, you can substitute a high quality probiotic for the homemade yogurt; however, the yogurt tastes great and is used in many of the SCD recipes, so if you CAN eat it, you should try. I found I was unable to tolerate it even when made with goats' milk, etc. I have issues with dairy, I guess, so I take Natren's non-dairy Healthy Trinity probiotic supplement.
Diagnosed with ulcerative colitis spring 1999.
Maintenance dose sulfasalazine.
Probiotics, l-glutamine and fish oil caps. George's aloe vera juice. Oregano oil antibiotic, antiviral, antifungal. Long-term remission with only minor blips.