This is an excellent video to reinforce the concepts we are learning. This may be an American video. I notice her "rule of thumb" is just a bit different from the one we learn in Canada.
Turn on subtitles and maximize the window. You can also slow down her rate of speech, remember?
Here is another good video: https://youtu.be/fJsF9q2E9do
This video addresses whether cooking fruits and veggies kills the vitamins.