Next paragraph (quick tip) states that it also stimulates glucagon which is an insulin antagonist and keeps it in balance.

My read is that protein and fiber are better for keeping your blood sugar in balance but whole grain can give a safer boost if you’re low. Too much protein can hurt your liver/pancreas, but it’s actually hard for most people to eat “too much” protein as it makes you feel full quickly.

Interesting, learned something new! Thanks