Here is a list of basic requirements an individual has to satisfy to be selected as a donor for FMT:
( quite many of those requirements are automatically satisfied if the donor is a young child, at least 3 years old)
born by natural vaginal birth (ask donors mother)
breast fed by mother for at least 8 months or longer (ask donors mother)
donors mother never used any prescription medications during pregnancy, especially not Antibiotics
donor is generally very healthy person
never tested positive for sexually transmitted diseases (STD) like: HIV, Hepatitis C, B, A, Syphilis, Gonorrhea, Herpes
not sexually promiscuous ( sexual promiscuity increases likeliness of an STD infection)
not practicing anal sex ( practicing anal sex increases likeliness of being infected with intestinal parasites or intestinal bacteria)
to be on the safe side, a sexually active donor should have taken an STD test during the last few months, if possible.
never been infected with intestinal parasites or blood parasites or dangerous intestinal bacteria
never traveled to third world tropical countries ( traveling to third world tropical countries increases likeliness of being infected with intestinal parasites, dangerous intestinal bacteria or dangerous virus )
never suffered from travelers diarrhea
perfectly healthy digestion, no chronic digestive problems
never suffered from any chronic or serious diseases
never suffered from any chronic pain, including but not limiting to: chronic headaches, migraine, joint pains, chronic back or neck pain, arm pain, leg pain, foot pain etc.
never suffered from any mental illness like depression, anxiety, schizophrenia, etc.
not addicted to alcohol, narcotics, tobacco, legal or illegal drugs
has regular bowel movements, 1-2 per day, healthy color of feces (brown - brown yellow), healthy smell of feces (not too strong smell), healthy shape of feces, nicely formed, rounded, not too large, not too small
healthy body weight, not obese, not underweight
healthy skin, healthy hair and healthy nails: never suffered from chronic acne, chronic peeling lips, hair loss, eczema, psoriasis, Seborrheic Dermatitis , allergies, hives, boils, warts, etc.
never suffered from chronic unpleasant Body Odor , bad breath, inflamed tonsils, tonsil stones
never suffered from chronic vision problems
never treated with oral Antibiotics or at least not treated with oral Antibiotics during the last 5 years
healthy teeth and healthy gums. At least not having large number of Amalgam fillings in his/her mouth
if it is a fertile woman, she should have a regular menstrual cycle. Feces should not be taken during the days of menstruation.
if it is a woman, she should not be using hormonal birth control like Mirena IUD or any other IUD, or any other hormonal pills.
never suffered from any chronic disease or any other diseases, including but not limiting to: inflammatory bowel diseases like ulcerative colitis and Crohn's disease, irritable bowel syndrome, any form of cancer, Fibromyalgia, any tumor, cyst, Parkinson's disease, Multiple Sclerosis, Autoimmune diseases, hypothyroidism, neurological diseases, endocrine disorders, Arthritis etc.
never treated with strong medications
never been operated on, has all body parts on its place, working as it should
healthy heart, lungs and cardiovascular system
no hearing problems and no vision problems and no problems with any of the senses
When the therapy is performed in clinical setup, donor is usually tested for STDs and for blood and intestinal infections and parasites.
When doing the therapy at home, without possibility to test donor, you simply chose the healthiest donor available.