Strange! I didn't gots no PM from you, maybe you're not allowed to yet since you're a new member?? Not sure what that's about, I'd think it would let you know if that was not one of your privileges!?!
Anyway, yep, I buy the whole, young coconut (though I'm not opposed to mature, they're a pain to me to process though and wayyyy tougher to chew)
They sell the young ones for about $1.50ea here in MN and they're quite heavenly! If you've got a good coco knife, which means it's sturdy, strong metaled, and fairly sharp, all it should take is 4 quick whacks on the top in a square large enough to scoop out the insides and you've got yourself a sweet, decadent, nutrient rich treat. Drink or ferment the water, then scoop out the flesh with a strong spoon. Or you can blend the flesh with the liquid for a yum smoothie, if you can tolerate other fruits you can add them, but then you're beginning to sugar bomb yourself. Sugar is a problem for me, so I go easy on it always. And my guess is that it's probably not too welcome in your system either in large quantities.
I haven't had a coconut since last summer, since it is when it's 90F+ out that I really crave them cold from the fridge, but I would eat them year round if they were easily available and in my budget. $1.50ea is a steal though as I've seen the same brands in the co-ops for $6.99ea !?!?!?!
If you have trouble sourcing whole, young coconuts, or find it too much of a burden to process them, a distant second is the whole flesh which can be termed manna or butter, at health food stores. This will not likely be raw, and is not the most palatable stuff on the planet at room temp, but as far as nourishment goes, it's reasonable. Maybe think about starting a journal so others can benefit from your experiments and we can continue to discuss there!
EDIT: I just reread and saw you mention you keep it low carb, cool, then you might definitely consider making Kefir from the water of the fresh young coco's. Does your body like fermented foods?
My baby bro and sister both suffer from autoimmune stuffs and even though I'm sure a raw diet would cure them, their parents are unwilling to take cooked foods from their diet or drugs from their 'therapies', so would love to hear more about how raw foods works for you! Cheers a best wishes!