I live on the east coast and have never heard of it.
They generally also carry have options that aren’t just crunchy candy, but be prepared to read a lot of nutrition labels before you find one.
[1] https://www.bobsredmill.com/old-country-style-muesli.html
[2] https://www.whatsgoodattraderjoes.com/2021/01/trader-joes-mu...