One of my son's favourite snacks is cheerios. I heard that a lot of North American like to give it to their babies as snacks. It is a very healthy snack, I reckon. If you read on the packet, it contains many vitamins and minerals, and no sugar. Cheerios are one kind of breakfast cereals but can also be taken as snacks. My son loooooves them sooo much!
The brand that I have been giving to my son is General Mills (a US brand). It is a yellow packet with a big red heart in the front. There are not many supermarkets which sell this product, but I know that TST's City Super and Park N Shop at TST's Victoria Tower ("Kong King Fung") sometimes have stock. But the stock runs out very fast.
I have seen that Nestle has recently released a new product similar to General Mills' Cheerios. But I have not tried this product yet.