Diabetes presents a whole new ball game, if anyone has tried to survive on what grows and what can be hunted, they know they cannot live the way they were living with the supermarket and inevitable weight loss is common. These things in the past would have killed and enfeebled people, but now we know about them and what must be done to prevent problems we cannot deal with or find difficulty dealing with.
This is where I think the onus is on the effected, they forage to ensure their mind is in the right place, what they forage is down completely to what can be found which if anyone has tried, is not fab compared to modern day living, no refined sugars or micromanaged food stuffs. It is a particular problem if your best mind is diabetic.
But diabetes like anything diagnosed can be abused, the key is other knowledgable persons that know better, as an aspie myself there are those clued that can put me right, there is no escape, what I can't compute, others put me right, but if allowed, I loose them in directions they cannot comprehend, which serves little purpose when the over riding desire is survival of all, because all is the beginnings of a community.
I am sorry if viewers see my method as survivalist, I am that way as aside from roughing it, camping and foraging, what else is there. when we at home have a supermarket within stone's throw for most.
But as to those that shadow a larger girth than they should, do yourself a favour and bushcraft for a few weeks, if you arrive at an ideal nutrition, you will lose weight, anything less, you will lose weight and more besides !