Several people found this site by asking questions about Kratom and diabetes, so let's talk briefly about that.
One person asked twice, "Can you take kratom with diabetes?" Kratom is used in the folk medicine of Thailand as a treatment for diabetes. There is only one published research study that seems to indicate that kratom does, indeed, help blood sugar get into muscle cells (and perhaps brain cells) better, which would seem to solve the key issue of Type-2 diabetes: insulin resistance. I'm shocked that no further research has been done to test and perhaps use this finding in creating a drug to help diabetics, but I can only surmise that diabetics are too profitable to the medical industry with existing drugs, amputations, heart surgery, etc., that the pharmaceutical industry has no desire to cure diabetes, no matter what they say.
As a prediabetic, kratom seems to help keep my blood sugars at a healthy level. A green Maeng Da (strong) strain helps me wake up, soothes some minor arthritic pain, and energizes me throughout the day -- but other people find other strains (Red Vein, for example, or White Vein) to work better for them. Everyone must find how the different strains work in their unique metabolism.
I take no medications, except a rare ibuprofen. Those who are taking metformin or insulin should be testing their blood carefully if they decide to add kratom to their diet, and adjust their medication needs accordingly. I'm not aware of any specific negative interactions, but -- if you are taking multiple Rx drugs, it would be wise to speak with a medical professional who is aware of kratom's possible interactions.
There has been much misinformation put out by the U.S. FDA and DEA, making it sound like kratom is a drug of abuse. This is "asking for trouble" for those who treat it like a recreational drug, such as cannabis or alcohol. "More is not better!" There is a natural "ceiling effect" built into kratom, where taking more will not make you feel better, but quite the opposite. So, it is smart to take as small a dose as produces the effect you desire, and go about your daily activities.
I'm not aware of one strain that is better for diabetics than another. There are some notable differences in alkaloid content between different strains, as you can see HERE, but you will need to find which strains work best for you. The epicatechin, also found in green tea and dark chocolate, and tetrahydroalstonine appear to be the main anti-diabetic alkaloids.
There's a lot more that can be said about kratom, but the important thing is to approach it intelligently and with respect and sensitivity, so you have a positive experience. Read more at Kratom Basics.