OU,
speaking about eliminating sugar & saturated fats and eating veggies & fruits, I was dying 3 years ago, I am 5'8" and weighed 159 lbs 3 years ago, within 6 mos down to 115 lbs and jaundice, bilirubin at approx 4.0 with my hair turning white and falling out with infections in my nose and mouth that wouldn't go away, liver enzymes high etc etc. They were about to hospitalize me for intravenous feeding if I lost another lb. My general practioner kicked me out of his practice and gastro wouldn't return my frantic calls that something is wrong and I think it has to do with the Prilosec that he prescribed along with inflating a balloon in my esophagus because it was too narrow. He said I had esophagalits and gastritis etc.
So I saw a phenom Naturopath who put me on a new diet with a ffew supplements, a vegan diet with no eggs or fats except for a teaspoon of nuts or seed 3 x a day, no wheat only home made gluten free bread milled fresh and no sugar except what is in a small amount of fruit and a ton of veggies and grains and beans every day plus a green smoothie of my own wacky concoction. My bp at the time was 150/85 and my chol was 300+.
I am now cured, my bp is 99/58, chol 150 and I have gained 30 lbs back. Not easy to gain weight on this type of diet but I am. My goal is 150 lbs so at least I will resemble my old self. I am in the best shape of my life at 58 and I was a great athlete long ago.
Everyone needs to do this for their own good and have no processed anything. But very few will because they are indoctrinated into the American Western Diet and that therein lies the problem and it is a serious one.