Hello and
I'm sorry to hear of your losses previously and hope you can save some this time.
That dye is a potential issue, so don't rule it out until you know what it is, also the nonstick pan is a definite issue for you as well as the chicks, the toxins build up over time. There are some class action lawsuits over it regarding its effects on humans and it's well known to kill caged birds kept in apartments or rooms where nonstick pans etc are used to cook.
I can verify it's safe for chicks. The garlic, NOT the sugar. Refined white sugar is an immunosuppressant and neurotoxin and certainly shouldn't be given to sick animals, especially not those with infections of any kind.
Raw garlic has been used for centuries on poultry and other animals and I used it on 100% of all the hundreds of chickens I hatched naturally on the farm and I never lost a single chick to illness, and never saw a single case of cocci, which garlic is a specific treatment for and safeguard against. Garlic is great, but I don't think it'd magically overcome a serious deficit or problem early in life, whether dietary or via toxicity. Garlic is toxic to parasites due to its high sulfur levels and quite possibly garlic from some places in Asia is not safe any longer due to the Fukushima incident. Either way, my poultry stopped eating imported garlic from China after that incident and will no longer any garlic from China, so it's worth considering. They still love garlic from other countries though.
Best wishes.