My experience is the exact opposite, that adrenal burnout, is made far worse by going ZC. There have been several claims on this forum, for example, that going ZC can put a heavy stress on the adrenals causing numerous side-effects.
1 of the commonest symptoms of failing adrenals is an increasing tendency with people on SAD diets to not be able to digest (cooked) animal foods properly(with side-effects such as constipation/stomach-pains etc.), with many eventually being forced to go vegan. Fortunately, for me, I found that raw animal foods, by contrast, were fine to digest so I was able to cancel my raw vegan experiment. In hindsight, if I'd diagnosed myself with adrenal burnout years ago, I would have noticed
that one of the commonest recommendations for sufferers is to go in for unprocessed foods, thus speeding up my eventual discovery of a rawpalaeodiet.
I should also point out that when I went ZC or VVLC for certain lengths of time, my ability to handle raw carbs such as fruit became heavily reduced. This wasn't due to the raw carbs being unhealthy as such, it was merely that my body had changed over to a different style of digestion(ie gut bacteria meant to digest only meat not fruit, different enzymes being used by the body etc.). When I went back to eating raw carbs, after a while my body was able to digest them with no problems/side-effects, after a period of adjustment.
