You said..."1. to add acids like citric acid, wine acid, apple acid contained in fruits especially in citrus fruits in bigh concentrations causes acidosis, a sever metabolic disorder than destroys homeostasis and can lead to many consequences including organ failure and death"...this is why I've always limited the fruit to very very little when feeding the insects.
You said..."2. To feed almonds, which might be rich in cyanide might be fatal. Lower vertebrates might be extremely sensitive to it and hyperreact as it damages CNS and heart or it might cause non-identifiable cumulative poisoning"...I've never used almonds because of the cyanide.
You said..."3. Spirulina, many people uncritically swear on, can be comtaminated with toxins, self produce heavy toxins like microcystine, know to be lethal while damaging the liver or Not only boosting the imune system but also can cause strengthening of autoimune reactions or preventing blood clotting or is known to cause allergic reactions"...this I've never used either.
Nice to know that my reasoning isn't too bad!