Maybe things with very distinctive tastes (Doritos, Coke, etc) you might have a point but outside that it's largely packaging.
More often than not you roll your eyes and use it anyway, because most of the time it works well enough, for a while at least.
Branded food is a lot less likely to get a pass on any of those. We have a strong sense of what it's supposed to look like, smell like, taste like, feel like; we might put up with less from a clearly marked store-brand copy, but a name brand that doesn't taste like it should sets off alarm bells. And exactly reproducing a commercial food product is hard.
Even then, until it doesn't work right, you wouldn't know.
There are some _very_ good looking counterfeits on amazon.
Right now, their policies may change in the future.
not exactly confidence inspiring ;-)
Right now I’ve only seen it in electronics but I don’t buy much food that way. Amazon fresh is a different thing (all sourced / sold by amazon) so probably not a problem. Likewise oddball stuff (a low volume brand of tea) is unlikely to be worth counterfeiting. But mass market goods definitely are and the baby food example, while not amazon, is an excellent cautionary tale.
I honestly miss being able to go to a unique store to buy things - that way you could look at what you were actually buying and (maybe!) find something better for what you're trying to do.
“Sold by Amazon.com” is not safe, because of potential commingling with stock identified as the same SKU from Fulfilled by Amazon sellers. If you know of a reliable non-FBA third-party seller, that's the safest thing