I only recently really understood that doctors only practice MEDICINE and not GOOD HEALTH. There is a difference.
Doctors practice what insurance companies will pay them for, and insurance companies can only afford to pay for so much good health before they lose profitability. Case in point: about a year ago, I was at my PCP getting checked up and there was a new med grad student getting office experience, so, I asked her, HOW MANY BONES WERE IN THE BODY? You know, basic, general medical knowledge that I learned at the age of 5-6 just picking up my first book on the body. Her reply? "I am not an osteopath, so I have no idea." Wow.
Nobody gets out of this alive, but I know when my time comes it will have roots in the poor choices I made as long as 30 years ago.
Well, FWIW, I became interested in anatomy, physiology and medicine around the age of 5. I studied all about the body and how everything works for years until an interest in astronomy took around 10-11. Then in HS, I switched from an astronomy career path into EE as a more practical and profitable career choice. In between, I grew up with a father in the meat business, became a vegetarian for 20 years, and became heavily invested in studying alternative medicine like herbology, so I understand roots, plants, folklore and practical effects.
During that time, I lectured people on the importance of diet, herbs and eating, lifestyle choices, I even used to make my own herbal compilations for others and put them together in capsules to treat systemic effects. Finally about 15 years ago, a good friend and chef talked me into going back to eating beef again and I have not regretted it-- protein is an important food source, and while I would probably starve before killing another living thing, I get by eating meat already prepared for consumption in the supermarket! Nor do I ever judge those who hunt for game, food or sport just because I wouldn't do it myself. I value the importance of guns and the fact that for hundreds of years, the gun (or bow) is how people survived (and if push came to shove, it wouldn't take much for people today to need to do that again).
But perhaps the most important thing I learned over the years is that my choices are my business for my own reasons and I do not need lectured by others as I probably know things many doctors do not! Likewise, I've come to learn to respect other people's choices for what they eat, so I refrain from telling others MY opinions about what they should or should not eat or how they should live. It just isn't by business to judge their decisions. Of course, if someone actually wants my informed opinion, I would give them my advice on what I know. But the fact of the matter is that everyone knows that fresh natural food and good eating decisions are better for you, but it is up to the individual to make their own choices, not upon me to push my views on others. There is no right or wrong, just a lot of choices different people make for innumerable reasons. That is their right to eat and live as they see best.
As to the FDA, I wish they steered our food industry more towards the European system of small, local producers of fresh, wholesome, natural foods instead of giant conglomerates mass-producing food in giant factories to be shipped to huge supermarkets! And I wish our health industry was more geared towards preventative medicine and healthy living instead of just pushing pills and waiting for disease to take effect before prescribing radical surgical solutions.