diet is way lower on the list of causes of all disease;
much higher up are toxic lights and infestation by parasites;
both drain a ton of mitochondrial energy from the retina;

the repair mechanisms are thwarted by toxic diet, but not nearly to the same degree - the body is very intelligent - it will extract whatever it needs from whatever it gets, and discard the rest; it's all a matter of how pure one desires to become;