...anyone raising peacocks or any other birds doesn't want them to come to harm, so feeding them the right foods and avoiding foods that are bad for them is critical.
Treats that are high in sugar offer little in the way of nutrition for the birds. Feeding them candy will only make them abandon their regular diet and start depending more heavily on you for handouts.
...you will want to stay away from heavily processed meats because they have a ton of salt, sugar, and chemicals inside of them that may harm the birds.
Chips are another food you’ll want to skip giving to your peacocks because they offer little to no nutritional value. It’s like eating calories with no benefits.