So the real question is not: Do supplements work, yes or no? It is: Which ingredients have meaningful evidence, in whom, for what purpose, and with what expectations? That is a much smarter question and a much better way to choose a formulation
Carry a letter from your doctor if you're concerned about questions
Alpha-adrenergic agonists: Limited (and often very small) studies of Clonidine and Guanfacine report improvements in behaviors such as hyperactivity, impulsivity, stereotypies, self-stimulation, inappropriate speech, irritability, aggression, and oppositional behavior as a frequent side effect in individuals with ASD
For diabetics or those at risk, these changes could translate into improved blood sugar management and reduced reliance on medications
I say these things, again, never to evoke fear, but so that we have the knowledge to be aware of our bodies and work with them in a powerful, educated way