Insulin is necessary, but too much Insulin due to high amounts of sugar and carbs leads to Insulin Resistance and eventually to diabetes if not addressed properly. There is good evidence that high amounts of insulin in the blood leads to coronary heart disease, high blood pressure, and many other problems.
Cutting down on insulin by eating fats, protein and veggies will not only cut so much insulin in the blood stream but will also get insulin resistant cells to be insulin sensitive – a good thing.
There is a lot written about this. Most often the Ketogenic Diet is considered a way to lose weight – but so much more. The theory you don’t get healthy by losing weight, you get Healthy to Lose Weight.
But even if you aren’t overweight, building health is a good thing.
Read more about Insulin Resistance