One of the greatest accomplishments of the 20th Century was get medicine onto a firm scientific foundation. This means using controlled experiments (double-blinding, control groups, statistical analysis, etc.) to determine what works and what doesn’t work.

If you can’t produce a couple of well designed studies to show that something is both safe and effective, then it’s just bullshit.

“Clinical experience” isn’t worth a plug nickel. We bled patients for at least 2000 years as a treatment for infectious diseases. My uncle, who received his MD during WWII, took over the practice of a country doctor who was still bleeding his patients.

Testimonials are also useless. If you’ve got condition X and you take a drug or have a procedure performed and you get better/well, then you will be convinced that there was a causal relationship. After all, if your refrigerator is screwing up and a repairman does something and it starts working well again, then it’s reasonable to conclude that there was a causal relationship. But the human body isn’t like a refrigerator. Refrigerators have no repair mechanisms built into them; we have very elaborate repair systems built into us. If you do nothing, you will usually get well.

Stick with traditional Western medicine. There’s a lot of useless and dangerous horse shit out there. If you’re sick, go see a real doctor.

/rant off

Glutamine for leaky gut. God Bless

Lots of info out there for leaky gut, sibo, IBS etc. A good approach is an elimination diet or even carnivory. But that can be hard if you aren't already on the low-carb lifestyle. That alone may improve your symptoms. Leaky gut is most likely pervasive in society based on typical eating habits.

Also, remember, as a general rule, plants don't want to be eaten. They can produce lectins that can disrupt the gut biome.