Don't waste your money on the first three (not even sure what therapy with cytosomes would mean since that just means part of a cell), since as Nikki points out, peptides and ozone are definitely part of the "kitchen sink feeding bank account" ecosystem.
However, some here have felt better with less sugar [depends where you are starting from, of course], which makes sense since ALS takes a toll on metabolism and needing to ramp up insulin production is a drain on the body. Also, as the disease progresses, you are doing fewer sprints and other activities requiring intense bursts of energy.
Since keto means reducing all carbs, not just complex ones, I would question jumping in full throttle since again, living with ALS requires readily accessible energy and what is lacking will affect remaining muscle bulk, respiratory drive, etc. However, if you wanted to reduce carbs gradually to see if you can find a new sweet spot (no pun intended), that would make more sense. Healthy fats and lean protein are certainly important.