And I don't want to sound morbid, but the healthiest eating person I used to know (my dermatologist), got sick and died from cancer in just couple of months, WITHOUT any prior issues. This still has lingering effects on how I perceive food and life. She used to call me fat when I was a teen and tell me I will get sick if I don't stick to her diet - she used to make me eat 1 kg of cucumbers every day to cleanse my blood or something like this, because I had normal teen acne. What happened to her was a tragedy, but it made me realize something - NOBODY is sure of anything and sickness doesn't ASK before it starts. SADLY. Then there are the lucky ones - my father has better blood work than me and hasn't eaten a vegetable or fruit in his entire life. He exists on steak and meat and cakes... and he has been OVERWEIGHT ever since hitting 30. He has better cholesterol levels than anyone I know and has never had flu or a cold I think... since I was born.
I AM NOT saying that healthy eating is not important - I myself have stopped getting flu and colds every month even since I started eating one salad and fruit every day. To me fruit and veg is veeeery important now.
BUT, the obsession with healthy eating to the point that you think this will in some way MAKE you BETTER than other people or even be a sure ticket for a long and healthy life... is ludicrous. Yes, healthy eating improves many things... BUT if you SUFFER mentally eating foods you don't want every day and NEVER ever get any taste or just enjoy food - I prefer to eat junk from time to time, than to suffer from psychiatric conditions or eating disorders.
ALL of this is just my POV. Mine only. I do not advise people eat or think like me.