People can change their diet if they want to. It’s not difficult.
Yes & no.
Some can, some cannot. I address the roots of that paradox in my final volume. Someday it will actually be finished and published, if I regain sufficient motivation to help others which - unfortunately under the climate of the past number of years - has been tortuously taxed to death.
I did. I like my pasta. A little too much. My blood sugar was over 600 at one time and my doc put me into the hospital. Well of course they put me in insulin until it came down but they also force-fed me carbs all day. I objected and knew what I needed (whole eggs, not that nasty egg substitute, and real butter, not fake stuff). Once out, I threw out every carb and bought real food, greens, olive oil and cooked every meal. My blood sugar returned back to normal and I told the doctor that I didn’t know how much insulin to take any more. He didn’t either. Took me off it and suggested pills instead.