I have been amazed at the accurate and pertinent results from some services such as NutriHacker (via data from 23andMe.com or DNA.Ancestry.com). This has allowed me to take my nutritional supplementation certainty to a much higher level that has been corroborated medically.
One thing that I have traditionally observed, from my own experience, is that some probiotic bacteria and yeast have left me feeling ill and caused bowel problems. No one has been able to ascribe a why to this or what regimens would be best for my particular scenario.
This has led me to think: are there studies that indicate that certain probiotics are better for individuals with certain genetic profiles?
If anyone has seen such studies or know of such research, a sharing of this would be much appreciated. I think having this information would lead to a much better overall level of health for many of us vs stabbing in the dark, which most doctors and nutritionists have recommended to me so far.