Taking probiotic supplements alone cannot solve all gastrointestinal problems.
You might need glutamine. You should first see a Naturopathic Gastroenterologist to determine your needs. There is food allergy testing Ig G, SIBO testing and a GI Map to determine your intestinal flora. This will check for bacteria, parasites, and yeasrt
Probiotics need the help of prebiotics to keep thriving. And, this is mainly achievable by eating prebiotic and fermented foods.
Bananas are one of the best sources. Adding bananas to your diet is easy because of their accessibility. By itself, banana fruit (banana is scientifically considered a berry, by the way) is packed with nutritional benefits. It is high in potassium, iron, magnesium, and vitamins A, C, and E.
There are many varieties of bananas and all of them are proven to be good for your health. Among them, the unripe ones are the best for you when it comes to prebiotics.
Green, or unripe bananas, contain resistant starch or prebiotic fiber that cannot be broken down by the digestive tract. They travel all the way to your large intestine and serve as food for the beneficial bacteria.