Because doctors that switched from low salt high carb diets for patients with high blood pressure have almost none of them reverse their condition and they stay on meds their while life. The ones they switched to low carb high salt diets for if meds in 3 months.

The same thing is happening to diabetes. The doctor getting people off the old diabetic diet plans are reversing the disease.

All is this has been happening for the last 5 years. We won't see results on the future, it's happening now.

Weight loss doctors have also failed to produce and results in weight loss management for the last 40 years (97% failure rate, including surgery) until recently. It's because everyone we know about food was wrong for the last few decades. Shit we even replaced butter with margarine and beef fat with crisco and wondered why heart disease increased. We now have the data that shows these alternative fats are killing people.

New immerging data is also showing high ldl isn't caused by high cholesterol diets, it's caused by damage to the body from sugar. The ldl is the body trying to repair the damage.

Dementia was always thought of as a brain disorder. Now it's starting to be called diabetes type 3 because studies are finding insulin resistance is causing the brain condition, and this rise is from the food pyramid and telling people to eat 3 times a day with small snacks. It prevents the brain from repairing itself.

Also the old people that learned this old information won't change their minds, they are dead now, or dying of heart disease, or diabetes, or have dementia and won't learn anything new. Old people are stubborn.