How much candy can you bring to America

I have a friend in the US who used to live in Canada -- so she's noticed that some things taste differently. Such as Twizzlers. And she likes Canadian Twizzlers better.

So I inquired with U.S. Customs and Border Protection (CBP) as to how much I could bring:

I am visiting a friend in San Francisco later this year.
She wants Twizzlers -- she says the same product in the US tastes differently from those in Canada.
How much am I allowed to bring into the US for her? I don't go to the US regularly and she doesn't come to Canada regularly, so I was thinking of getting her more than just a couple of bags.

Here is their initial reply:

You can bring the candy to the US, and there is no set limit on the amount. All you have to do is declare the food to a CBP officer at the border or airport.
Mark
Answer Title: Food- Bring personal use food into the U.S. from CanadaAnswer Link: https://help.cbp.gov/app/answers/detail/a_id/1273
Answer Title: Travelers bringing food into the U.S. for personal useAnswer Link: https://help.cbp.gov/app/answers/detail/a_id/82
Thank you for contacting the U.S. Customs and Border Protection (CBP) INFO Center.

"Not set limit" = unlimited? Wow! But apparently not. Here's what I wrote back:

Thank you for the clarification.I did see the articles on the website, but as I was planning to bring as much as I could stuff into my bag, I was a bit worried about quantity, and I did not see the article clearly state that amounts are unlimited.

And their cautious response (emphasis mine):

You are allowed to have a reasonable amount of food for personal use or gifts. Usually that is up to 22 kg/50 pounds.

If I become a Youtube sensation for trying to smuggle too many bags of Twizzlers to San Fran, you'll know what happened...